Directions. Solve the problems on your answer sheets. Show your solutions well.
Exercise 1
Leonor's Garden is one of the best-sellling gardens in town. Its income in pesos in a
week is modelled by the polynomial function P(x) = x2 + 2x – 15 where x represents
the number of plants sold.
a. If there are 120 plants sold, how much is her income?
b. At least how many plants should be sold in a week to avoid deficit?
Exercise 2
The width and length of a rectangular classroom are x+3 and x-1 respectively. Its
area is 45 sqm.
a. What is the value of x?
b. What are the dimensions of the classroom?​