For the graph below, what should the domain be so that the function is at least 200?

graph of y equals minus 2 times the square of x plus 30 times x plus 200

-5 _ x _ 20

0 _ x _ 15

x _ 0

all real numbers

Question

Ignacio Mcgee

24 December, 23:32

+3

Answers (1)

Know the Answer?

Dario Wagner · Answer 1

Y = - 2x^2 + 30x + 200

-2x^2 + 30x + 200 ≥ 200

-2x^2 + 30x ≥ 0

-2x^2 ≥ - 30x

x^2 ≤ 15x

x ≤ 15

Required domain is 0 ≤ x ≤ 15

For the graph below, what should the domain be so that the function is at least 200?graph of y equals minus 2 times the square of x plus 30 times x plus 200-5 _ x _ 200 _ x _ 15x _ 0all real numbers