Math 8 Unit 4 Question Preview (ID: 40182)


3.1-3.4. TEACHERS: click here for quick copy question ID numbers.

What is the slope of the line y = 1/2x - 4
a) 4
b) -4
c) 1/2x
d) 1/2

What is the slope of the line y = -2x + 4 - 6x
a) -8
b) -4
c) 4
d) 8

Write y = -2x + 4 - 6x in slope-intercept form.
a) y = 4x + 4
b) y = 4x - 4
c) y = -8x + 4
d) y = -8x - 4

What is the slope of y = 2(3x + 4)?
a) 6
b) 3
c) 4
d) 8

Write the equation y = 2(3x + 4) in slope-intercept form.
a) y = 6x + 4
b) y = 6x + 8
c) y = 3x + 8
d) y = 8 + 6x

What is the slope of a vertical line?
a) undefined
b) zero
c) infinite
d) undetermined

Solve the equation for x. 3(2x + 1) - 5x = 7
a) 4/11
b) 7/11
c) 6
d) 4

What is the slope of a horizontal line?
a) undefined
b) zero
c) infinite
d) undetermined

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) $2.50 per cupcake
b) $7.50 per cupcake
c) $.13 per cupcake
d) $.40 per cupcake

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) The rocket rose 50 feet per second
c) The skydiver fell 50 feet per second.
d) Dawn has 50 feet and you can count them in 1 second.

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) $1.40 per topping
b) $.70 per topping
c) $4 per topping
d) .70 cents per topping

Solve the equation for x. 2x + 10 = 6x + 2
a) 1.75
b) 1.5
c) 3
d) Definitely this one.

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