Answer:
i think its 60
Step-by-step explanation:
base times height then divide by 2
Irrational
Irrational
Rational
Rational
Irrational
Rational
Irrational
Irrational
Sorry if anything is wrong, I went off of memory! :)
When you know your equation f(x) and they want you to find f(-4), it means that they want to know what f(x) is worth when x=-4
Therefore, you only need to plug in you x in the equation
f(x)=5x-2
f(-4)=5(-4)-2
=-20-2
=-22 (B)