Question

What is the value of the dependent variable if the value of the independent variable is –4.
Help Please

Answer 1

f(x)=-3x^2+5x

The independent variable is -4

f(-4) = -3(-4)^2 + 5(-4)

Answer 2

yeah but what is f? thats what I'm trying to find out @KirbyLegs

Answer 3

f(-4) = -3(16) - 20
f(-4) = -48 - 20
= -68

The dependent variable (y) is -68
Does that make sense?

Answer 4

yeah so f itself is not functioning as anything in the equation is is f the independent variable? @KirbyLegs

Answer 5

dependent variable*

Answer 6

f is the depdent variable, but f(x) is also y.
x is always independent
Yeah i caught that mistake XD

Answer 7

Alright I get it now Thankyou so much! @KirbyLegs

Answer 8

Just helping doing my duty . . . one question at a time.