Question

4 problems:
given f(x)=2xt3 and g(x)=x(sq)-5x
evaluate f(4)
evaluate f(6m)
evaluate g(-7)
evaluate g(t+8)

Answer 1

F(4)=2(4)+3=11
F(6m) = 2(6m)+3=12m+3

Answer 2

the above is correct.
same goes for g(x)
substitute the values then solve.

Answer 3

g(x)=x(sq)-5x

evaluate g(-7)
g(-7) = (-7)^2 - 5(-7)
g(-7) = 49 + 35

evaluate g(t+8)
g(t + 8) = (t+8)^2 - 5(t + 8)
y = t^2 + 16t + 64 - 5t - 40

Answer 4

Thanks ^-^