8th grade final Review

Debbie solved the linear equation 2(x - 3) + 5 = 11 as follows: [Line 1] 2(x - 3) + 5 = 11 [Line 2] 2(x - 3) = 6 [Line 3] 2x - 3 = 6 [Line 4] 2x = 9 [Line 5] x = 4.5 She made an error between lines:

• A. 1 and 2

• B. 2 and 3

• C. 3 and 4

• D. 4 and 5

Tags

CCSS.HSA.REI.A.1

Describe the transformation that happened to the figure.

• A. translation

• B. reflection

• C. rotation

• D. none of the above

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A set of data is graphed on the scatter plot below.

• no correlation

• positive correlation

• negative correlation

• undefined correlation

Tags

CCSS.HSS.ID.B.5

Which two numbers does the square root of 50 fall in between?

• 6 and 7

• 7 and 8

• 8 and 9

• 5 and 6

Tags

CCSS.8.NS.A.2

Which graph represents a function?

• 1

• 2

• 3

• 4

Which of the following equations is a linear function?

• y = 2x + 3

• y = x² + 1

• y = x³ - 4

• y = x⁴ + 2

Tags

CCSS.8.F.A.3

Which shows (2⁴)³ in exponential form?

• 2⁷

• 2¹²

• 2⁶

• 2¹

Tags

CCSS.8.EE.A.1

The measures of the angles in triangle UVW are shown in the diagram below. What is the value of x?

• 16

• 11

• 50

• 6

Tags

CCSS.8.G.A.5

If z² = 169, then which could be the value of z?

• 13

• 26

• 39

• 52

Tags

CCSS.8.EE.A.2

What is the product of (2.5 × 10³) and (4.2 × 10²) expressed in scientific notation?

• 1.05 × 10⁵

• 10.5 × 10⁵

• 1.05 × 10⁶

• 10.5 × 10⁶

Tags

CCSS.8.EE.A.4