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Reptile [31]
3 years ago
10

Find the value of x so that the function has the given value. You must show your work for each problem in your notebook to recei

ve full credit.
1. f(x) = 6x+9; f(x) = 21
x = ?

2. g(x) = -1/2x + 3; g(x) = -1
x = ?

If you don't know the answer, then please don't answer at all. Brainly is meant to help others understand the material given. Thank you!
Mathematics
2 answers:
galben [10]3 years ago
7 0

\LARGE{ \underline{ \orange{ \rm{Required \: answer:}}}}

Some functions in variable x is given to us. And the value of the polynomial in x is also given, we need to find the value of x in each case.

GiveN:

  1. f(x) = 6x + 9, f(x) = 21
  2. g(x) = -1/2x + 3, g(x) = -1

What to find?

  • We need to find the value of x in each case.

Step-wise-Step Explanation:

1) <u>f(x) = 6x + 9, f(x) = 21</u>

⇒ f(x) = 21

⇒ 6x + 9 = 21

⇒ 6x = 12

⇒ x = 2

Value of x in this case is <u>2</u><u>.</u>

2) <u>g(x) = -1/2</u><u> </u><u>x</u><u> + 3, g(x) = -1</u>

⇒ g(x) = -1

⇒ -1/2 x + 3 = -1

⇒ -1/2 x = -4

⇒ 1/2 x = 4

⇒ x = 8

Value of x in this case is <u>8</u><u>.</u>

Maru [420]3 years ago
4 0

Answer:

1. The value of x is 2

2. The value of x is 8

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