Question

what's an equation for a line with slope= -3 and y-intercept= -5

Answer 1

Y = -3x - 5
as y = mx + b
m = slope
y = b

Answer 2

:D
how about an equation for a HORIZONTAL line passing through (0,2)?

Answer 3

Any horizontal line is of the form y = k where k is some number


Since the line must pass through (0,2) this means that k = 2 (notice how the y coordinate of this point is 2)


So the equation of that line is y = 2