Solutions of Linear Equations Introduction

What are the coordinates of Point A?

• (4, -3)

• (-3, 4)

• (-3, -4)

• (3, 4)

What are the coordinates of Point B?

• (0, -3)

• (-3, 0)

• (-3, -3)

• (3, 3)

Point C has coordinates (-3, 5). What is Point C's x-coordinate?

• -3

• 5

• 0

Point D has coordinates (7, -2). What is Point D's y-coordinate?

• 7

• -2

• 0

Wendy needs to find a solution to the linear equation y = 8x - 3.

She lets x = 5. What will y be equal to?

• y = 37

• y = 16

• y = 8

Jim needs to find a solution to the linear equation y = 3 + 5x.

He lets x = 2. What will y be equal to?

• y = 16

• y = 13

• y = 9

Which choice gives a solution to the equation y = 30 - 5x?

Hint: Check each answer choice.

• x = 2 and y = 15

• x = 2 and y = 20

• x = 2 and y = 25

We can write solutions of linear equation in ordered pair form (coordinates).

How can you write the solution x = 8, y = 10 as an ordered pair?

• (8, 10)

• (10, 8)

How can you write the solution x = 30, y = 20 as an ordered pair?

• (20, 30)

• (30, 20)

Which choice gives a solution to the equation y = 4x + 7?

• (5, 30)

• (5, 27)

• (5, 48)