Answer:
f(x) = 4x − 12
Step-by-step explanation:
It's not quadratic. It's linear. Each time x increases by 1, f(x) increases by 4. So the slope is 4. The y-intercept (when x=0) is -12. The equation of the line is therefore:
f(x) = 4x − 12
The school can charge $7.54 for each agenda book.
Step-by-step explanation:
Given,
Purchase price of 350 books = $1137.50
Profit they want to make = $1500
Total amount = 1137.50 + 1500 = $2637.50
Therefore;
The school must sell 350 books for $2637.50
Thus,
350 books = 2637.50 dollars
1 book = 
1 book = $7.535
Rounding off to nearest cent
1 book = $7.54
The school can charge $7.54 for each agenda book.
Keywords: addition, division
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Angle MNO is 90, it’s just the top right corner