Which equation represents the horizontal line passing through (9,-7)? O y = 9
O x = -7
O x = 9
O y = -7

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

$18 was the price of the t-shirt

step-by-step explanation:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²