i-Ready Diagnostic Test Diagnostic Algebra and Algebraic Thinking 2

Question 1

A store sells notebooks for $3 each. Which equation represents the total cost (C) for n notebooks?

Accepted Answer

C = 3n

Answer

C = n + 3

Answer

C = 3 + n

Answer

C = n ÷ 3

Question 2

What is the value of x in the equation 4x − 6 = 18?

Accepted Answer

6

Answer

3

Answer

4

Answer

12

Question 3

Which expression is equivalent to 5(x + 4)?

Accepted Answer

5x + 20

Answer

5x + 4

Answer

5x + 9

Answer

x + 20

Question 4

The rule for a pattern is 'multiply by 3 and subtract 1.' If the input is 5, what is the output?

Accepted Answer

14

Answer

13

Answer

16

Answer

11

Question 5

Which inequality represents 'a number y is at most 12'?

Accepted Answer

y ≤ 12

Answer

y > 12

Answer

y < 12

Answer

y ≥ 12

Question 6

If f(x) = 2x + 7, what is f(4)?

Accepted Answer

15

Answer

13

Answer

14

Answer

16

Question 7

A sequence starts: 2, 6, 18, 54, … What is the next term?

Accepted Answer

162

Answer

108

Answer

72

Answer

58