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WorksheetsChapter 2 Review
Total questions: 20
Worksheet time: 36mins
Are you ready to show work? You will need to show work on the quiz to get full credit!
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Absolutely
I'm so ready
I've got that paper and that pencil!
What does b represent in y = mx + b?
y-intercept
equation
slope
point
y-intercept of 3
y = 1/2x + 7
Here are the steps for finding the equation given the slope and one point (click on the image to make it larger). If the slope is -3 and the point is (1, 5), what would be the first step?
Notice m = -3 and (x, y) = (1, 5)
Solve for b
Write the equation
Divide the values
What would be the second step?
Plug in what we know to y=mx+b : 5 = -3(1) + b
Graph the point
Write the equation
Solve for b
What would be the third step?
Plug in what we know
Graph the point
Write the equation
Solve for b
Which one correctly plugs in the point (5, -7) and the slope -1 into the equation y = mx + b?
5 = -1(-7) + b
-7 = m(-5) -1
-7 = -1(5) + b
-5 = -1x - 7
Here are the steps for finding the equation given the two points (click on the image to make it larger). If the two points are (-3, 4) and (1, 5), what would be the first step?
Find the two x-values and two y-values
Find the slope
Solve for b
Write the equation
What would be the second step?
Find the two x-values and two y-values
Find the slope
Find the change in y and change in x
Write the equation
What would be the third step?
Find the two x-values and two y-values
Solve for b
Find the change in y and change in x
Write the equation
What would be the last step?
Find the two x-values and two y-values
Solve for b
Find the change in y and change in x
Write the equation
If a line has the points (-5, -12) and (0, -2), what's the slope?
m = -5
m = -10
m = 2
m = 5
When solving for b, does it matter which of the two points you plug in to solve for b?
No, it does not matter which point you plug in for x and y.
Yes, it matters which point you pick.
Sandra plugged in the point (-10, 8) and the slope -1/2 to to y = mx + b. Her equation is set up as 8 = -1/2(-10) + b. Solve for b.
b = 2
b = -5
b = 8
b = 3
(2, 2) and (3, 4)
(4, -1) and (0, -3)
