Question

Which of the following functions has the largest value when x = 3?

c(x) = 3x2 + 5x + 22
j(x) = 12x
a(x) = 9x
All the functions are equal at x = 3.
c(x)
j(x)
a(x)

Answer 1

I think thats it is c(x)

Answer 2

@Michele_Laino

Answer 3

we have to substitute x=3 into all of your equations, namely:
c(3)=3*9+5*3+22=64
j(3)=12*3=36
a(3)=9*3=27
now, the largest value is 64, so you are right!

Answer 4

Thank you!!!!!!!!!!

Answer 5

:)