## College Algebra 7th Edition

a) The slope of the line is the gradient and shows change as opposed to 2 different variables. $m= \frac{\triangle y}{\triangle x}= \frac{-2-4}{1+1}=-3$ b) We simply put it in slope-intercept form. $3y=-6x+12$ $y=-2x+4$ Slope is -2, y-int is 4 C) Use point slope: $y-2=3(x-1)$ c)