Answer:
p(x) = 7/5 x + 5.
Explanation:
The slope of the function = difference in values / f(x) / difference in values of x
= (19-12) / (10 - 5) = 7/5
also:
(26-19) / ( 15 - 10) = 7/5
and (33-26) / (20-15) = 7/5.
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