# Math in Focus Grade 8 Chapter 4 Lesson 4.4 Answer Key Sketching Graphs of Linear Equations

Go through the Math in Focus Grade 8 Workbook Answer Key Chapter 4 Lesson 4.4 Sketching Graphs of Linear Equations to finish your assignments.

## Math in Focus Grade 8 Course 3 A Chapter 4 Lesson 4.4 Answer Key Sketching Graphs of Linear Equations

### Math in Focus Grade 8 Chapter 4 Lesson 4.4 Guided Practice Answer Key

Use graph paper. Use 1 grid square to represent 1 unit for the x interval from -2 to 2, and the y interval from -2 to 4.

Question 1.
Graph the equation y = $$\frac{3}{2}$$x + 1.

Use graph paper. Use 1 grid square to represent 1 unit on both axes for the x interval from 0 to 3, and the y Interval from -3 to 7.

Question 2.
Graph the equation y = 2x + 1.

Question 3.
Graph the equation y = –$$\frac{1}{3}$$x – 2.

Use graph paper. Use 1 grid square to represent 1 unit on both axes for the x interval from -2 to 2, and the y interval from 0 to 10.

Question 4.
Graph a line with slope -2 that passes through the point (2, 2).

Question 5.
Graph a line with slope 2 that passes through the point (-2, 1).

### Math in Focus Course 3A Practice 4.4 Answer Key

For this practice, use 1 grid square to represent 1 unit on both axes for the interval from -6 to 6.

Graph each linear equation.

Question 1.
y = $$\frac{1}{3}$$x + 1

Question 2.
y = $$\frac{1}{6}$$x + 3

Question 3.
y = $$\frac{1}{2}$$x + 2

Question 4.
y = $$\frac{2}{3}$$x – 1

Question 5.
y = -x + 5

Question 6.
y = 3 – $$\frac{1}{4}$$x

Question 7.
y = 1 – $$\frac{1}{2}$$x

Question 8.
y = –$$\frac{1}{5}$$x – 2

Question 9.
Math Journal Graph the equation y = 2 – $$\frac{2}{3}$$x. Explain how to use the graph to find other solutions of the equation.

First select a value of the x-coordinate on the x-axis. Then trace it along the vertical grid lines until the gridline intersects with the graph.
Then trace horizontally from the graph to the y-axis to obtain the corresponding y-coordinate. This pair of x-coordinate and y-coordinate is one solution to the equation.

Question 10.
Math Journal Martha says that the point (4, -2) lies on the graph of the equation y = –$$\frac{1}{4}$$x – 1. Explain how you can find out if she is right without actually graphing the equation.

Graph each line with the given slope that passes through the given point.

Question 11.
Slope = $$\frac{2}{5}$$; (5, 4)
y = $$\frac{2}{5}$$x + 4

Question 12.
Slope = $$\frac{2}{3}$$; (6, 1)

Question 13.
Slope = -3; (1, 0)
Graph the equation y = -2x + $$\frac{1}{2}$$.