Factor the trinomial: 5x^2+22x+21

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

What is the value of f(x) = 2.2 for f(-2)?

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.