Answer:
y = -7
General Formulas and Concepts:
Algebra I
Slope-Intercept Form: y = mx + b
Horizontal lines have a slope of 0.
Step-by-step 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
