Write the equation of line , in slope-intercept form, given the points a(0, 4) and b(-4, -8). in your final answer, include all of your calculations.

Slope-intercept form is y = mx+b
you can tell the slope because slope = rise/run or the change in y per change in x.
change in y = |0 + -4| = 4  = 1
change in x     |4 + -8|     4
slope = 1

since when x=0, y=4, then the y-intercept is 4

so the slope-intercept form is y = (1)x + 4 = x + 4