O to A = (-8,2)(0,0) = (0 - (-8) / (0 - 2) = -8/2 = -4 A to B = (-12,3)(-8,2) = (2 - 3) / (-8 - (-12) = -1/4 so O to A is 4 times the slope of A to B ===================== initial value is the y int....5 ==================== (0,200)(1,160) slope = (160 - 200) / (1 - 0) = - 40
u have a y int of 200 ur equation is : y = -40x + 200 ================== (0,25)(1,40) slope = (40 - 25) / (1 - 0) = 15
y = mx + b slope(m) = 15 (0,25)...x = 0 and y = 25 sub and find b 25 = 15(0) + b 25 = b <=== this is ur fixed amount
