Writing equations in slope intercept form

What is the slope-intercept form of a linear equation?

• y = mx + b

• y = cx + e

• y = bx + d

• y = ax + c

If the slope (m) is -3 and the point is (-5, 6), what is the y-intercept (b)?

• 15

• -9

• 9

• -15

Given a slope of 12 and a point (4, -10), what is the y-intercept (b)?

• 2

• -2

• 12

• -12

How do you find the slope between two points (x1, y1) and (x2, y2)?

• (y2 - y1) / (x2 - x1)

• (x2 - x1) / (y2 - y1)

• (y1 - y2) / (x1 - x2)

• (x1 - x2) / (y1 - y2)

If the points are (1, 2) and (5, 3), what is the slope?

• 1/4

• -1/4

• -4

• 4