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1 vote
.Given the function f(x)=(3x+4)-(2-x) evaluate for f=5

2 Answers

1 vote

Answer:

22

Explanation:

f(x)=(3x+4)-(2-x)

Let x =5

f(5)=(3*5+4)-(2-5)

Do the parentheses first

= (15+4) - (2-5)

= 19-(-3)

= 19+3

= 22

User Chris Buckett
by
8.3k points
7 votes

For this case we have a function of the form
y = f (x), where:


f (x) = (3x + 4) - (2-x)

Simplifying, taking into account that
- * + = -and
- * - = +, we have:


f (x) = 3x + 4-2 + x

We add similar terms:


f (x) = 4x + 2

Now we evaluate the function at
x = 5:


f (5) = 4 (5) +2\\f (5) = 20 + 2\\f (5) = 22

Answer:


f (5) = 22

User Fonfonx
by
8.5k points

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