IM Grade 8 Unit 3 Check Your Readiness

Select all tables that represent proportional relationships.

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Answer explanation

For a table to be proportional, all non-zero values of y/x must be the same. This y/x value is called the constant of proportionality.

Tags

CCSS.7.RP.A.2D

To mix a particular shade of purple paint, red paint and blue paint are mixed in the ratio 5:3. To make 20 gallons of this shade of purple paint, how many gallons of red and blue paint should be used?

Answer explanation

12.5 gallons of red paint

7.5 gallons of blue paint

At one gas station, gas costs $5.75 per gallon. Write an equation that relates the total cost, C, to the number of gallons of gas purchased, G.

• G = 5.75c

• g/c = 5.75

• 1 x 5.75 = C

• C = 5.75g

Tags

CCSS.6.EE.C.9

Plot and label 3 different points with x-coordinate 3.

Then in a different color, sketch all points in the plane with an x-coordinate of 3 be?

Tags

CCSS.5.G.A.2

On the coordinate plane, draw a line m that is a translation of line l.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

On the coordinate plane, draw a line n that is a rotation of line l, using the origin as the center of rotation.

Tags

CCSS.HSG.CO.B.6

A store sells ice cream with assorted toppings.

They charge $3.00 for an ice cream, plus 50 cents per ounce of toppings.

How much does an ice cream cost with 4 ounces of toppings?

Tags

CCSS.7.EE.B.4A

A store sells ice cream with assorted toppings.

They charge $3.00 for an ice cream, plus 50 cents per ounce of toppings.

How much does an ice cream cost with 11 ounces of toppings?

• $3

• $5.50

• $8.50

• $14

Tags

CCSS.7.EE.B.4A

A store sells ice cream with assorted toppings. They charge $3.00 for an ice cream plus 50 cents per ounce of toppings.

If Elena's ice cream cost $1.50 more than Jada's ice cream,

how much more did Elena's toppings weigh?

Tags

CCSS.7.EE.B.4A