Answer:
f(4) = 25
Explanation:
f(x) = 8x - 7
If we want to know when x = 4 what is the y value we have to subsitute 4 for x!
So...
f(4) = 8(4) - 7
f(4) = 32 - 7
f(4) = 25!
Answer
25
plug 4 into x. 8 times 4 equals 32. Subtract 7 from 32 and you'll get 25
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