Representations of Linear Functions

Quiz
•
Mathematics
•
9th Grade
•
Hard
+3
Standards-aligned
Anthony Clark
FREE Resource
12 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Slope: 0
Y-Intercept: 0
Slope: 1
Y-Intercept: 1
Answer explanation
The table is going by 1s on both the Xs and the Ys, so the slope is 1.
When x=0, y=0, so the y-intercept is 0.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Slope: 5
Slope: -2
Slope: 2
Y-Intercept: -2
Y-intercept: 5
Answer explanation
The graph is going down from left to right, so it will have a negative slope. It is going down 2 for every single change in x, showing a slope of -2.
The graph starts on the y-axis at 5, so the y-intercept is 5.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y = 5x + 10
Slope: ___
Y-intercept: ___
Slope: 10
Y-intercept: 5
Slope: 5
Y-intercept: 10
Slope: -5
Y-intercept: 10
Slope: 5
Y-intercept: -10
Answer explanation
The # being multiplied by the variable is the slope, so we locate 5x and identify the slope = 5. The # being added/subtracted once is the y-intercept, so y-intercept = 10.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y = 3x - 200
Slope: ___
Y-intercept: ___
Slope: 3
Y-intercept: 200
Slope: 200
Y-intercept: 3
Slope: 3
Y-intercept: -200
Slope: -200
Y-intercept: 3
Answer explanation
The # being multiplied by the variable is the slope, so we locate 3x and identify the slope = 3. The # being added/subtracted once is the y-intercept, so y-intercept = -200.
Also, remember to look IN FRONT of the number for its sign.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3. y = -2x - 1
Slope: ___
Y-intercept: ___
Slope: -1
Y-intercept: -2
Slope: -2
Y-intercept: -1
Slope: 2
Y-intercept: 1
Slope: 2
Y-intercept: -1
Answer explanation
The # being multiplied by the variable is the slope, so we locate -2x and identify the slope = -2. The # being added/subtracted once is the y-intercept, so y-intercept = -1.
Also, remember to look IN FRONT of the number for its sign.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. y = 5 - 7x
Slope: ___
Y-intercept: ___
Slope: -7
Y-intercept: 5
Slope: 5
Y-intercept: -7
Slope: 7
Y-intercept: 5
Slope: -5
Y-intercept: 7
Answer explanation
The # being multiplied by the variable is the slope, so we locate -7x and identify the slope = -7. The # being added/subtracted once is the y-intercept, so y-intercept = 5.
**CAREFUL because the numbers are not always in the same order.
Also, remember to look IN FRONT of the number for its sign.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
y = x
Slope: ___
Y-intercept: ___
Slope: 0
Y-intercept: 1
Slope: 0
Y-intercept: 0
Slope: 1
Y-intercept: 1
Slope: 1
Y-intercept: 0
Answer explanation
The # being multiplied by the variable is the slope, so we locate x and identify the slope = 1 since there is an INVISIBLE 1 in front of any lonely variable. We usually don't write 1x because that is silly and it is obvious there is one x.
The # being added/subtracted once is the y-intercept, so y-intercept = 0 since nothing is being added or subtracted.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
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