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

Question

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

anonymous · Answer

attachment

anonymous · Answer

f(x)=-3x^2+5x

The independent variable is -4

f(-4) = -3(-4)^2 + 5(-4)

anonymous · Answer

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

anonymous · Answer

f(-4) = -3(16) - 20
f(-4) = -48 - 20
        = -68

The dependent variable (y) is -68
Does that make sense?

anonymous · Answer

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

anonymous · Answer

dependent variable*

anonymous · Answer

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

anonymous · Answer

Alright I get it now Thankyou so much! @KirbyLegs

anonymous · Answer

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