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Input value for the function machine that gives an output value of 3.

Input value for the function machine that gives an output value of 3.-example-1
User Lorence Hernandez
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1 Answer

11 votes
11 votes

Answer:

x = –1

Explanation:

From the question given above, the following data were obtained:

y = √(–2x + 7)

y = 3

x =?

The value of x can be obtained as follow:

y = √(–2x + 7)

3 = √(–2x + 7)

Take the square of both side

3² = –2x + 7

9 = –2x + 7

Collect like terms

9 – 7 = –2x

2 = –2x

Divide both side by –2

x = 2 / –2

x = –1

User Omikad
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