Question

Identify the x- and y-intercepts of f(x). Without graphing g(x), identify its x- and y-intercepts.
f(x)=-3/2x+9;g(x)=2/3f(x)

Answer 1

@michae1 You know what x and y intercepts mean?

Answer 2

@ash2326
they are the x axis and y axis on a graph, correct?

Answer 3

The line where it cuts x axis, is the x intercept
where it cuts y axis , is y intercept

Answer 4

oh yea. i know this. im just doing this problem on the web cause i don't really understand this way of graphing

Answer 5

f(x)=-3/2x+9
to find x intercept put f(x) ( or y) =0 and find value of x
to find y intercept put x=0 and find value of f(x)
Can you try?

Answer 6

these are the possible answers...
a) f(x): 6, 9

g(x): 6, 6

b) f(x): 6, 9

g(x): 6, 9

c) f(x): 6, 9

g(x): 4, 6

d) f(x): 6, 9

g(x): 4, 9

Answer 7

yea

Answer 8

x=6?

Answer 9

yes, good :) now find y intercept

Answer 10

i dont get how to solve
g(x)=2/3f(x)

Answer 11

oh wait nvm

Answer 12

okay i need help..

Answer 13

We need to find g(x)
\[g(x)=\frac 2 3 f(x)\]
\[g(x)=\frac 2 3 \times(\frac {-3}{2} x +9)\]
multiply and find g(x)

Answer 14

i got 9

Answer 15

for y intercept of f(x)?

Answer 16

no for g(x)...

Answer 17

Try again

Answer 18

i divided negative one to negative 9

Answer 19

2/3×(−3/2x

Answer 20

what dos that =

Answer 21

\[g(x)=\frac 2 3 \times(\frac {-3}{2} x +9)\]
\[=\frac 2 3 \frac 3 2(-x)+\frac 2 3 \times 9\]
\[=-x+6\]

Answer 22

so then we plug in 6?

Answer 23

for x intercept put g(x)=0
y intercept x=0

Answer 24

so g(x):6, 6

Answer 25

yes :)
do you understand this?

Answer 26

yea i do now

Answer 27

cool :D