shane wants to figure out what grade he is getting in math. His test scores were 85.6 ,78.5 ,92.5 ,67 and 83.7. What was his ave
2 answers:
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Answer:
(x) =
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
change x to (x) and y back to x, thus
(x) =