Question

For the graph below, what should the domain be so that the function is at least 600?

graph of y equals minus 2 times the square of x plus 40 times x plus 600

0 ≤ x ≤ 20
−10 ≤ x ≤ 30
x ≥ 0
All real numbers

Answer 1

I swear people I freaking stalking me because when I post 5 people post right away after me :/

Answer 2

So your equation is \[y=-2x^2+40x+600\] the domain for polynomials is all real numbers, but your graph is asking about domain focuses on the x values.