Refer to our Texas Go Math Grade 8 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 8 Module 14 Answer Key Scatter Plots.

## Texas Go Math Grade 8 Module 14 Answer Key Scatter Plots

**Texas Go Math Grade 8 Module 14 Are You Ready? Answer Key**

**Evaluate each expression for the given value of x.**

Question 1.

6x – 5 for x = 4

Answer:

Substitute the given value for x

6x – 5 = 6(4) – 5

= 24 – 5

= 19

Question 2.

-2x + 7 for x = 2

Answer:

Substitute the given value for x

-2x + 7 = -2(2) + 7

= -4 + 7

= 3

Question 3.

5x – 6 for x = 3

Answer:

Substitute the given value for x

5x – 6 = 5(3) – 6

= 15 – 6

= 9

Question 4.

0.5x + 8.4 for x = -1

Answer:

Substitute the given value for x

0.5x + 8.4 = 0.5(-1) + 8.4

= -0.5 + 8.4

= 7.9

Question 5.

\(\frac{3}{4}\)x – 9 for x = -20

Answer:

Substitute the given value for x

\(\frac{3}{4}\)x – 9 = \(\frac{3}{4}\)(-20) – 9

= -15 – 9

= -24

Question 6.

1.4x + 3.5 for x = -4

Answer:

Substitute the given value for x

1.4x + 3.5 = 1.4(-4) + 3.5

= -5.6 + 3.5

= -2.1

**Solve for x.**

Question 7.

3x + 4 = 10

Answer:

3x + 4 = 10

-4 = -4 Subtract 4 from both sides.

3x = 6

\(\frac{3 x}{3}=\frac{6}{3}\) Divide both sides by 3

x = 2

Question 8.

5x – 11 = 34

Answer:

5x – 11 = 34

+11 = +11 Add 11 from both sides.

5x = 45

\(\frac{5 x}{5}=\frac{45}{5}\) Divide both sides by 5.

x = 9

Question 9.

-2x + 5 = -9

Answer:

-2x + 5 = -9

-5 = -5 Subtract 5 from both sides.

-2x = -14

\(\frac{-2 x}{-2}=\frac{-14}{-2}\) Divide both sides by -2.

x = 7

Question 10.

8x + 13 = -11

Answer:

8x + 13 = 11

-13 = -13 Subtract 13 from both sides.

8x = 24

\(\frac{8 x}{8}=\frac{-24}{8}\) Divide both sides by 8.

x = -3

Question 11.

4x – 7 = -27

Answer:

4x – 7 = 27

+7 = +7 Add 7 to both sides

4x = 20

\(\frac{4 x}{4}=\frac{-20}{4}\) Divide both sides by 4.

x = -5

Question 12.

\(\frac{1}{2}\)x + 16 = 39

Answer:

\(\frac{1}{2}\)x + 16 = 39

-16 = – 16 Subtract 16 from both sides.

\(\frac{1}{2}\)x = 23

\(\frac{1}{2}\)x ∙ 2 = 23 ∙ 2 Multiply both sides by 2.

x = 46

Question 13.

\(\frac{2}{3}\)x – 16 = 12

Answer:

\(\frac{2}{3}\)x – 16 + 16 = 12 + 16 Add 16 to both sides

\(\frac{2}{3}\)x = 28

\(\frac{2}{3}\)x × \(\frac{3}{2}\) = 28 × \(\frac{3}{2}\) Multiply both sides by the reciprocal of \(\frac{2}{3}\), which is \(\frac{3}{2}\).

x = \(\frac{3 \cdot 28}{2}\)

x = \(\frac{3 \cdot 28}{2}\) Multiply the numerator.

x = \(\frac{84}{2}\)

x = \(\frac{84}{2}\) Divide

x = 42

Question 14.

0.5x – 1.5 = -6.5

Answer:

0.5x – 1.5 = -6.5

+1.5 = +1.5 Add 1.5 to both sides.

0.5x = 5

\(\frac{0.5 x}{0.5}=\frac{-5}{0.5}\) Divide both sides by 0.5.

x = – 10

**Texas Go Math Grade 8 Module 14 Reading Start-Up Answer Key**

**Visualize Vocabulary**

Use the ✓ words to complete the right column of the chart.

**Understand Vocabulary**

**Match the term on the left to the correct expression on the right.**

1. cluster – A. A data point that is very different from the rest of the data in a set

2. outlier – B. A straight line that comes closest to the points on a scatter plot.

3. trend line – C. A set of closely grouped data.

Answer:

1. – C. A cluster is a set of closely grouped data.

2. – A. An outlier is a data point that is very different from the rest of the data in a set

3. – B. A trend line is a straight line that comes closest to the points on a scatter plot.

**Active Reading**

Two-Panel Flip Chart Create a two-panel flip chart, to help you understand the concepts in this module. Label each flap with the title of one of the lessons in the module. As you study each lesson, write important ideas under the appropriate flap. Include any sample problems or equations that will help you remember the concepts later when you look back at your notes.