ACAP PREP 8th Grade

Which translation can be used to prove that figures 2 and 3 are congruent?

• (x, y) → (x, y - 4)

• (x, y) → (x + 2, y)

• (x, y) → (x - 3, y + 1)

• (x, y) → (x + 1, y - 3)

Which pair of ratios form a proportion?

• 7:11 and 35:44

• 7:11 and 35:44

• 9:12 and 27:48

• 11:7 and 33:21

Which mapping diagram does NOT represent a function from x → y?

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Which two ratios form a proportion?

• 2 : 3 and 12 : 18

• 2 : 3 and 12 : 36

• 2 : 3 and 4 : 12

 $x^3=\frac{27}{64}$  

• x = 34

• x = (34)³

•  $x=\frac{3}{4}$  

•  $x=(±34)3$  

Which line best fits the data in the scatterplot?

• y = 2x - 1

• y = 2x + 2

• y = 2x + 3

• y = 2x + 1

x + 3y = 7

x - 3y = 1

Solve the system of equations.

• x = 4, y = 1

• x = 1, y = 4

• x = -23, y = 3

• x = 3, y = -23

2(2 + 3) + 4x = 2(2x + 2) + 6

• no solution.

• infinitely many solutions.

• two solutions.

• one solution.

The given lines are rotated 90°. Which choice describes the lines resulting from the transformation?

• intersecting

• parallel

• perpendicular

• skew

Which scatterplot suggests no relationship between x and y?

• I and III only

• II only

• II and III only

• III only