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A) rewrite each equation using function notation f(x) b) find f(3)

A) rewrite each equation using function notation f(x) b) find f(3)-example-1
User Sebasira
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1 Answer

22 votes
22 votes

Hello there. To solve this question, we'll simply have to isolate y and plug in the value for x.

Given the equation:

4x - 3y = 8

To rewrite it using the notation y = f(x), subtract 4x on both sides and divide the equation by -3

-3y = 8 - 4x

y = - 8/3 + 4x/3

Now, plug in x = 3 in order to find f(3)

f(3) = -8/3 + 4 * 3/3 = -8/3 + 12/3 = 4/3

User Amna Arshad
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