SOLUTION: find an equation of the form f(x)=mx+b: f(0)=5 and f(2)=7

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Question 304778: find an equation of the form f(x)=mx+b:
f(0)=5 and f(2)=7
Answer by london maths tutor(243) About Me  (Show Source):
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f(x) = mx+b
f(0) = m(0) + b = b = 5
Therefore b = 5
f(2) = m(2)+ 5 = 7
m(2) = 7 - 5
m(2) = 2
m = 1
Therefore equation : f(x) = x + 5