y = mx + b slope(m) = -2 (1,5)...x = 1 and y = 5 now we sub and find b, the y int 5 = -2(1) + b 5 = -2 + b 5 + 2 = b 7 = b so ur equation is : y = -2x + 7
The approximation method used to estimate a point between 2 given points is called linear interpolation. The approximation method used to estimate a point that does not lie between 2 given points is called linear extrapolation.A linear function has the form f(x) = mx + b. Its graph is a line that has slope m and y intercept at (0,b).
