Question

There is a line that includes the point (6,–10) and has a slope of –9. What is its equation in point-slope form?

Answer 1

Answer: y + 10 = -9(x - 6)

Explanation:

Use this formula to solve for point-slope form: y - y1 = m(x - x1)

m would be the slope and the given slope is -9

y1 refers to the given y coordinate and x1 refers to the given x coordinate.

y + 10 = -9(x - 6)

Answer 2

A slope of zero means a horizontal line (parallel to the x axis). So the line is y=-6, which is the y intercept. There is no x term because y=-6 for all x.

Explanation: