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PLEASE HELP 30 POINTS!!!!!!!!!!!!!!!!!!!!!!!

The table below shows some values of f(x) and g(x) for different values of x:

Complete the chart and determine the solution of the equation f(x) = g(x).
x = −1
x = 0
x = 2
x = 25

PLEASE HELP 30 POINTS!!!!!!!!!!!!!!!!!!!!!!! The table below shows some values of-example-1
User Ozmo
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1 Answer

1 vote

Since you know the value of "x", you can plug in the value for "x" in the equation.

[When an exponent is negative, you move it to the other side of the fraction to make the exponent positive.]

For example:


x^(-2) or
(x^(-2))/(1) =(1)/(x^2)


(1)/(y^(-3)) =(y^3)/(1) or y³


x = -2

f(x) = 9x + 7

f(-2) = 9(-2) + 7 = -18 + 7 = -11



g(x)=5^x


g(-2)=5^(-2)=(1)/(5^2)=(1)/(25) (idk if you should have it as a decimal or a fraction)



x = -1

f(x) = 9x + 7

f(-1) = 9(-1) + 7 = -9 + 7 = -2



g(x)=5^x


g(-1)=5^(-1)=(1)/(5)



x = 0

f(x) = 9x + 7

f(0) = 9(0) + 7 = 7



g(x)=5^x


g(0)=5^0=1



x = 1

f(x) = 9x + 7

f(1) = 9(1) + 7 = 9 + 7 = 16



g(x)=5^x


g(1)=5^1=5



x = 2

f(x) = 9x + 7

f(2) = 9(2) + 7 = 18 + 7 = 25



g(x)=5^x


g(2)=5^2=25



You need to determine the solution of f(x) = g(x)

Since you know f(x) = 9x + 7 and
g(x)=5^x, you can plug in (9x + 7) for f(x), and (
5^x) into g(x)


f(x) = g(x)


9x+7=5^x You can plug in each value of x into the equation


Your answer is x = 2 because when you plug in 2 for x in the equation, you get 25 = 25

User Insectatorious
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