# What Is F(x) When X

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If you are looking for the answer of what is f(x) when x, you’ve got the right page. We have approximately 10 FAQ regarding what is f(x) when x. Read it below.

## What is the value of f(x) when x is 2,

Ask: What is the value of f(x) when x is 2, if f(x) = x – 4? *
1 point​

Step-by-step explanation:

[tex]f(2) = (2) – 4[/tex]

f(2) = -2

## Given f(x)=(3/4)^x, what is the value of f(x) when x

Ask: Given f(x)=(3/4)^x, what is the value of f(x) when x is -3?

f(×)=(3/4)^×,what is the value of f (×) when × is -3

Step-by-step explanation:

ito ang sagot

## F(x)=-5x+7, what is x when f(x)= -23?

Ask: F(x)=-5x+7, what is x when f(x)= -23?

## EVALUATING FUNCTION

Solution:

F(x) = -5(-23) + 7

F(x) = 115 + 7

F(x) = 122

• When a function F is defined by y= f(x), then x is called the independent variable. Any element of the domain can be chosen as a value of the independent variable. The resulting value determines the corresponding value of the dependent variable.

• The value of the dependent variable y= f(x) that correspondents to a specific value of an independent variable x is found by substituting x into the function rule, then, simplifying the resulting expression. Such process is called evaluating a function:

Steps:

1. Write the given function

2. Replace every x in the function rule g(x) with the given replacement value

3. then simplify the resulting numerical expression

Read the detail in another example of evaluating function on brainly.ph/question/2181870

Read the details on how to evaluate function in brainly.ph/question/847670

## If f(x)=6x-4, what is f(x) when x=8?

Ask: If f(x)=6x-4, what is f(x) when x=8?

f(x) = 6x-4
f(8) = 6(8) – 4
f(8) = 48 – 4
f(8) = 44

## If f(x) = x/2 + 8, what is f(x) when

Ask: If f(x) = x/2 + 8, what is f(x) when x = 10?

Step-by-step explanation:

f(x) = x/2 + 8

f(x) = 10/2 + 8

f(x) = 5 + 8

f(x) = 13

## the function f(x) varies directly with x and f(x)=4 when

Ask: the function f(x) varies directly with x and f(x)=4 when x=12 what is the value of f(x) when x=60

EQUATION: f(x) = kx

4 = k(12)

[tex]frac{4}{12}[/tex] = [tex]frac{12k}{12}[/tex]

k = [tex]frac{1}{3}[/tex]

f(x) = [tex](frac{1}{3})[/tex]x

f(x) = [tex](frac{1}{3})[/tex](60)

## If f(x) = 6x – 4, what is f(x) when

Ask: If f(x) = 6x – 4, what is f(x) when x = 8?

Substitute x with 8
6(8)-4
48-4 = 44

44 ^-^

Solution:
f(x)=6x-4
f(8)=6(8)-4
f(8)=48-4
f(8)=44

## If f(x) = 5x + 40, what is f(x) when

Ask: If f(x) = 5x + 40, what is f(x) when x = –5?

f (x)= 5 (-5) +40
f (x)= -25+40
f (x)=15

if f(x) = 5x + 40, when x = -5

f(x) = 5(-5) + 40

f(x) = -25 + 40

∴ f(x) = 15

## If f(x) = + 8, what is f(x) when x

Ask: If f(x) = + 8, what is f(x) when x = 10?

f(x) = x + 8

f(10) = 10 + 8

f(10) = 18

## What is f(x) + f(x) + f(x)? when f(x)=x2

Ask: What is f(x) + f(x) + f(x)? when f(x)=x2

f(x) + f(x) + f(x)?

now, we substitute the f(x) to x^@

x^2 + x^2 + x^2