The analytic expression of a positive scale function image is obtained through points (2,4) and (m, M + 5) The image of a positive scale function passes through points (2,4) and (m, M + 5) (1) to find the analytic expression of the function. (2) to find the value of M

The analytic expression of a positive scale function image is obtained through points (2,4) and (m, M + 5) The image of a positive scale function passes through points (2,4) and (m, M + 5) (1) to find the analytic expression of the function. (2) to find the value of M

(1)y=2x
(2)m=5