Question

HELP WITH ACT PRACTICE QUESTION: if f(x)=x^2+x+5 and g(x) = sqrroot x, then what is the value of g(4)/f(1) ?

Answer 1

enter 1 into the expression named f
enter 4 into the expression named g

Answer 2

why?? I'm doing a practice test and i got this one wrong so i don't need the answer as much just how to do the problem!:-)

Answer 3

2/7

Answer 4

@dinamix @freckles can you explain why?

Answer 5

have you entered 1 into the expression named f yet?

Answer 6

@freckles yes

Answer 7

f(x)=x^2+x+5
replace x with 1


g(x)=sqrt(x)
replace x with 4

Answer 8

what do you get when you evaluate x^2+x+5 for x=1
and what do you get when you evaluate sqrt(x) for x=4?

Answer 9

7 and 2

Answer 10

correct
\[\frac{g(4)}{f(1)}=\frac{\sqrt{4}}{1^2+1+5}=\frac{2}{7}\]

Answer 11

that correct @iwanttogotostanford

Answer 12

ok thanks that wasn't so hard I guess