Question

What is the x-intercept of the equation 7x + 3y = 21?

Answer 1

(3, 0)

Step-by-step explanation:

x-intercept is when the graph crosses the x-axis when y = 0.

Step 1: Write equation

7x + 3y = 21

Step 2: Set y = 0

7x + 3(0) = 21

7x = 21

x = 3