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Math 8 Unit 4
Test Description: 3.1-3.4
Instructions: Answer all questions to get your test result.
1) Bob is buying a pizza. The pizzeria charges $8 for a medium pizza, and $10 for a large pizza. If Bob buys a medium pizza with 2 toppings for $9.80, what is the cost per topping?
A
$.70 per topping
B
$1.40 per topping
C
$4 per topping
D
.70 cents per topping
2) Gwen is making cupcakes for a bake sale. She anticipates selling 50 cupcakes each day for 3 days. If she makes $375 from the bake sale, what was the cost per cupcake?
A
$7.50 per cupcake
B
$.40 per cupcake
C
$.13 per cupcake
D
$2.50 per cupcake
3) Dawn determined a unit rate to be -50 feet per second. What could this rate mean in context?
A
A diver started 50 feet below the water's surface.
B
Dawn has 50 feet and you can count them in 1 second.
C
The rocket rose 50 feet per second
D
The skydiver fell 50 feet per second.
4) What is the slope of the line y = 1/2x - 4
A
1/2
B
-4
C
1/2x
D
4
5) What is the slope of the line y = -2x + 4 - 6x
A
-4
B
-8
C
8
D
4
6) Write y = -2x + 4 - 6x in slope-intercept form.
A
y = -8x - 4
B
y = -8x + 4
C
y = 4x + 4
D
y = 4x - 4
7) What is the slope of y = 2(3x + 4)?
A
4
B
3
C
8
D
6
8) Write the equation y = 2(3x + 4) in slope-intercept form.
A
y = 8 + 6x
B
y = 6x + 4
C
y = 6x + 8
D
y = 3x + 8
9) What is the slope of a vertical line?
A
undetermined
B
undefined
C
zero
D
infinite
10) What is the slope of a horizontal line?
A
undetermined
B
zero
C
infinite
D
undefined
11) Solve the equation for x. 3(2x + 1) - 5x = 7
A
4
B
7/11
C
4/11
D
6
12) Solve the equation for x. 2x + 10 = 6x + 2
A
1.75
B
1.5
C
Definitely this one.
D
3
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