Solve f(x)=x² When f(4)=6+a: Function Evaluation Problem

Calculate the value of a a .

f(x)=x2 f(x)=x^2

f(4)=6+a f(4)=6+a

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Step-by-step video solution

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00:00 Find A
00:05 Substitute appropriate values according to the given data, and solve for A
00:21 Calculate the exponent
00:24 Isolate the unknown A
00:32 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

Calculate the value of a a .

f(x)=x2 f(x)=x^2

f(4)=6+a f(4)=6+a

2

Step-by-step solution

To solve this problem, we'll follow these steps:

  • Step 1: Calculate f(4) f(4) using the given function.
  • Step 2: Set f(4) f(4) equal to 6+a 6 + a and solve for a a .

Now, let's work through each step:

Step 1: The function given is f(x)=x2 f(x) = x^2 . We want to find f(4) f(4) , which is:

f(4)=42=16 f(4) = 4^2 = 16

Step 2: According to the problem, f(4)=6+a f(4) = 6 + a . Therefore, we set:

16=6+a 16 = 6 + a

Subtract 6 from both sides to solve for a a :

166=a 16 - 6 = a

a=10 a = 10

Therefore, the value of a a is a=10 a = 10 .

3

Final Answer

a=10 a=10

Practice Quiz

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What is the value of y for the function?

\( y=x^2 \)

of the point \( x=2 \)?

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