Answer:
h = m + 42 is the equation. 68 is the plant's height after 26 months.
Explanation:
H would be the output value that you need to find, and m would be the input value, that is multiplied by 1 (because it grows 1 cm every month). Input any value for the number of months in m, and add 42 (because it is already 42 cm), and then you will have your total height after any number of months. For example, 26 months the equation would be h = 26 x 1 + 42. 26 x 1 is 26 and if you add 42, your answer is 68.