KY K-PREP 8th Grade Math Part A

Chapter: 3
Standard: 8.NS.1
DOK: 1
1 pt

1.

Which of the following is a rational number?

A

$$\sqrt{7}$$

B

$$5\pi $$

C

$$\sqrt{324}$$

D

$$\sqrt{12}$$

Chapter: 3
Standard: 8.NS.2
DOK: 2
1 pt

2.

Which number is $$\sqrt{78}$$ closest to?

A

8

B

9

C

10

D

78

Chapter: 1
Standard: 8.EE.1
DOK: 3
1 pt

3.

What is the value of $$\frac{12{x}^{5}}{{\left(2{x}^{\u20134}\right)}^{\u20133}}$$?

A

$$\frac{1}{6{x}^{8}}$$

B

$$\frac{96}{{x}^{7}}$$

C

$$\frac{3}{2{x}^{7}}$$

D

$$\frac{3{x}^{7}}{2}$$

Chapter: 2
Standard: 8.EE.4
DOK: 2
1 pt

4.

Subtract: $$\left(1.93\times {10}^{5}\right)\u2013\left(1.4\times {10}^{3}\right)$$

A

$$0.53\times {10}^{8}$$

B

$$0.53\times {10}^{2}$$

C

$$1.916\times {10}^{5}$$

D

$$1.916\times {10}^{8}$$

Chapter: 12
Standard: 8.EE.6
DOK: 1
1 pt

5.

Which equation is shown in the graph below?

A

$$y=-\frac{1}{2}x+1$$

B

$$y=x+1$$

C

$$y=\frac{1}{2}x+1$$

D

$$y=2x+1$$