What is the solution of the equation?

4q + 4 = 20

a) q = 4
b) q = 6
c) q = 16
d) q = 24

Find the maximum value of p= 4x + 5y subject to the following constraints :

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.