Question

1. Line n passes through points

(-9, 10) and (-3, -2).

a. Find the slope of line n.

b. Write the slope-intercept form for line N

Answer 1

The slope formula is m=(y2-y1)/(x2-x1).

Explanation:

Use the slope formula to find the slope of a line given the coordinates of two points on the line. The coordinates of the first point represent x1 and y1. The coordinates of the second points are x2, y2.

Answer 2

a. -2

b. y = -2x + 4

Explanation:

using (-9, 10) and (-3, -2)

Slope m = (y2-y1)/(x2-x1)

m = (-2 - 10)/(-3 - -9)

m = -12/6 = -2

Slope-intercept: y = mx + b

using (-3, -2)

-2 = -2(-3) + b

-2 = 6 + b

b = 4

y = -2x + 4