Help!

- anonymous

Help!

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- anonymous

Which of the following is an approximate solution for f(x) = g(x)?
A. x= -2
B. x= 0
C. x= -1
D. x= 1

##### 1 Attachment

- Mehek14

where do they intersect?

- Mehek14

they intersect at 3 different places

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## More answers

- Mehek14

can you tell me the order pairs?

- anonymous

Ok one second

- anonymous

(-1,0)...

- Mehek14

correct that's one of them
what's the x value in (-1,0)?

- anonymous

-1

- Mehek14

that's your answer

- Mehek14

the other solutions are
x = -2.5 and x = 1.5
however, they aren't in your choices
the only one that is
is x = -1

- anonymous

(-3.75,-2.75) is the second coordinate and the third is around (2.5,3)

- anonymous

Oh ok thank you! I get it now

- Mehek14

your welcome ^_^

- anonymous

Can you help me on one more? @Mehek14

- Mehek14

yea sure

- anonymous

Ok so I know you told me when the two lines intersect, you get the coordinates and the x value to find the solution...so would the answer to the question I am about to put be A.

- anonymous

For two functions, f(x) and g(x), a statement is made that f(x) = g(x) at x = 5. What is definitely true about x = 5?
A. Both f(x) and g(x) cross the x-axis at 5.
B. Both f(x) and g(x) cross the y-axis at 5.
C. Both f(x) and g(x) have a maximum or minimum value at x = 5.
D. Both f(x) and g(x) have the same output value at x = 5

- Mehek14

is this with the same graph?

- anonymous

No

- anonymous

There is no graph for this question

- Mehek14

ok so if they are equal, that means they are the same number

- Mehek14

when x = 5
\(f(5) = g(5)\)

- Mehek14

meaning their outputs are the same

- anonymous

Oh ok

- Mehek14

you want an example?

- anonymous

yes please

- Mehek14

ok let's say your equations are
\(f(x)=2x+11\\g(x)=3x+6\)

- Mehek14

and they say x = 5

- Mehek14

\(f(x) = 2*5+11\\2*5=10\\10+11=21\\f(x)=21\)

- anonymous

oh i see...

- Mehek14

\(g(x)=3*5+6\\3*5=15\\15+6=21\\g(x)=21\)

- Mehek14

so \(f(x)=g(x)\)
because when you put x = 5 for both equations, they both have the same answer = 21

- anonymous

Omg i get it! Thank you so much!!!!!!!

- Mehek14

yw \(\color{blue}{\ddot\smile}\)

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