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11. Find a linear function of the form f(x) = ax + b that satisfy the conditions f(-1) = 3 and f(2)= 9. 12. The price of a wi
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q11)

F(x)=ax+b

f(-1)=3

a(-1)+b=3 -----(1)

f(2)=9

a(2)+b=9 -------(2)

Solve equation (1) and (2)

3+a=9-2a

3a=6

a=2 ,b=5

Line function F(x)=2x+5

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