In order to find the answer, you can use the substitution method. We must first rearrange the second equation so we can plug it in the first giving us: x=-11-5y Plug in x=-11-5y in the first equation: 6(-11-5y)+4y=-14. Distribute and combine like terms: -66-26y=-14 Move -66 to the other side so y will be alone: -26y=52 Divide by -26 to get the value of y,which is -2.
Please be aware that any questions posted during the weekend will be responded on Monday. We are only available from Mondays through Fridays!
You would use cross multiplication to solve or m. Multiply 9 times m and 10 times 7 to get 9m=70 Then you would divide both sides by 9 to solve for m. m=70/9 Hope this helps!!!
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b. m= slope b=y-intercept. In both equations given, the m and b is given. In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4). Then move up 3 and 1 to the right,resulting a point at (1,-1). If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2). Then move 1 up and 1 to the right, resulting a point at (1,3). Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like! http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b. m= slope b=y-intercept. In both equations given, the m and b is given. In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4). Then move up 3 and 1 to the right,resulting a point at (1,-1). If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2). Then move 1 up and 1 to the right, resulting a point at (1,3). Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like! http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b. m= slope b=y-intercept. In both equations given, the m and b is given. In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4). Then move up 3 and 1 to the right,resulting a point at (1,-1). If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2). Then move 1 up and 1 to the right, resulting a point at (1,3). Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like! http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b. m= slope b=y-intercept. In both equations given, the m and b is given.
In this case, the slope would be 1/2 and the y-intercept would -6.
As you might be aware of the equation of a line is y=mx+b, and since m stands for slope you plug in the -3/4. Step 1: Once you have plug in the slope you will them plug in the point (-5,4) into the equation in order to find the b (the y-intercept) The equation will then look like this: y = -3/4x + b -5 = -3/4(4) + b -5 = -3 +b -2 = b So the answer is y = -3/4x -2
What is the y coordinate of the ordered pair that satisfies this system of linear equations?
ReplyDelete6x + 4y = -14
- x - 5y = 11
A. 2
B. 1
C. -1
D. -2
The answer would be D. -2.
DeleteIn order to find the answer, you can use the substitution method.
We must first rearrange the second equation so we can plug it in the first giving us: x=-11-5y
Plug in x=-11-5y in the first equation: 6(-11-5y)+4y=-14.
Distribute and combine like terms: -66-26y=-14
Move -66 to the other side so y will be alone: -26y=52
Divide by -26 to get the value of y,which is -2.
Please be aware that any questions posted during the weekend will be responded on Monday. We are only available from Mondays through Fridays!
What if you're not taking Pre-Algebra? Im taking Advanced math with Ms. Brito.
ReplyDeleteJust respond under Pre-Algebra and when you ask the question make sure that you say that you are in Advanced math. Thank you!
Deletewhat is the answer to 9/7=10/m
ReplyDeleteYou would use cross multiplication to solve or m. Multiply 9 times m and 10 times 7 to get 9m=70
DeleteThen you would divide both sides by 9 to solve for m. m=70/9
Hope this helps!!!
How do you graph y=3x-4 and y=x+2
ReplyDeleteSince the equation is in slope-intercept form, we know that the base formula is y=mx+b.
Deletem= slope
b=y-intercept.
In both equations given, the m and b is given.
In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4).
Then move up 3 and 1 to the right,resulting a point at (1,-1).
If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2).
Then move 1 up and 1 to the right, resulting a point at (1,3).
Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like!
http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
Solve the linear equations by graphing:
ReplyDeletey= 3x - 4
y=x + 2
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b.
Deletem= slope
b=y-intercept.
In both equations given, the m and b is given.
In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4).
Then move up 3 and 1 to the right,resulting a point at (1,-1).
If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2).
Then move 1 up and 1 to the right, resulting a point at (1,3).
Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like!
http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
y=3x-4
ReplyDeletey=x+2
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b.
Deletem= slope
b=y-intercept.
In both equations given, the m and b is given.
In order to graph it, you'd first plot the b(y-intercept) and then move up or down according the slope(m)
For y=3x-4, you'd plot a point at (0,-4).
Then move up 3 and 1 to the right,resulting a point at (1,-1).
If you need to find more points, you can again move up 3 and 1 to the right or 3 down and 1 to the left.
For y=x+2, you'd plot a point at (0,2).
Then move 1 up and 1 to the right, resulting a point at (1,3).
Again, if you need more points, you can move up 1 up and 1 to the right or 1 down and 1 to the left.
Click the link to see how the graph should look like!
http://i1380.photobucket.com/albums/ah185/numeratorsblogspot/ScreenShot2014-11-06at34839PM_zps27ab5fda.png
y= 1/2x - 6
ReplyDeleteFind the slope and y-intercept
Since the equation is in slope-intercept form, we know that the base formula is y=mx+b.
Deletem= slope
b=y-intercept.
In both equations given, the m and b is given.
In this case, the slope would be 1/2 and the y-intercept would -6.
A line has a slope of - 3/4 and passes through the point (-5,4). What is the equation of the line
ReplyDeleteAs you might be aware of the equation of a line is y=mx+b, and since m stands for slope you plug in the -3/4.
ReplyDeleteStep 1: Once you have plug in the slope you will them plug in the point (-5,4) into the equation in order to find the b (the y-intercept)
The equation will then look like this:
y = -3/4x + b
-5 = -3/4(4) + b
-5 = -3 +b
-2 = b
So the answer is y = -3/4x -2
Any doubts feel free to ask me! :D
what is 1/3 * 28
ReplyDelete9.33333
DeleteYou divide 28 by 3 to get 9.3333333
f(-7) if f(x) = 8x +15
ReplyDeletefind each function value
f(x)= 8x + 15
DeleteStep 1: You plug in -7 into x
Step 2: 8x7 is 56
Step 3: Add 15 to 56
The result will be 71.