a.) The y-intercept is 5 and the x-intercept is 4 cause that's where it intersects with the y and x axis.
b.) The slope is -5/4 cause it line is falling 5 down and 4 across (y/x).
c.) you use the slope intercept equation which is y=mx+b so the equation of the line would be y= -5/4x + 5 because m stands for the slope so you'd sub the number we'd already found which is -5/4. b stands for the y-intercept so you'd plug the number found previously as well which is 5.