Question

Which equation represents the horizontal line passing through (9,-7)?

O y = 9
O x = -7
O x = 9
O y = -7

Answer 1

y = -7

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

• m - slope

• b - y-intercept

Horizontal lines have a slope of 0.

Explanation:

Step 1: Identify

Point (9, -7)

Horizontal line

We know that a horizontal line will always have the same y values.

Step 2: Write equation

y = -7