Finding Equations of Lines
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = 8/5 and b = -8/5, what is the equation of the trend line in y= mx + b?
0 = 8/5 (1) - 8/5
y = -8/5 x + 8/5
y = 8/5 x - 8/5
y = mx + b
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If m = -3/4 and b = 9, what is the equation of the trend line in y= mx + b?
0 = -3/4 (9) +9
y = -3/4 x + 9
y = -3/4 x - 9
y = 3/4 + 9
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the slope between (1,0) and (6,8)
m = -8/5
m = 8/5
m = 7/6
Tags
CCSS.8.EE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If you selected point (1,0) and m = 8/5, what substitution is correct to solve for b?
1 = 8/5 (0) + b
0 = 8/5 (1) + b
8/5 = 1 (0) + b
y = mx + b
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What ordered pairs would you use to find the slope for the trend line?
(9,0) (3,8)
(0,9) (8,3)
Tags
CCSS.8.EE.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If you selected point (0,9) and m = -3/4 what substitution is correct to solve for b?
0 = -3/4 (9) + b
9= 3/4 (0) + b
9 = -3/4(0) + b
y = mx + b
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is missing in this equation when the directions were to write an equation in slope intercept form? y = -1 +8
the x is missing after the negative 1
it isn't missing anything
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
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