Answer: [tex]f(-735) = -\frac{2}{3}(-735) + 490 = 980[/tex]
Step-by-step explanation:
[tex]f(x) = -\frac{2}{3} x + 490 =0[/tex] Subtract 490 from both sides
[tex]\frac{3}{2}* -\frac{2}{3} x = -490 *\frac{3}{2}[/tex] Then flip [tex]-\frac{2}{3}[/tex] multiply both sides by [tex]\frac{3}{2}[/tex] to cancel out [tex]-\frac{2}{3}[/tex]
[tex]x= -735[/tex] Thus giving you -735 as your [tex]x[/tex].
Then you plug it back into the equation to solve.