Q. Three points on the graph of the function f(x) are {(0,1),(1,2),(2,5)}. Which equation represents f(x) ?f(x)=x2+1f(x)=2xf(x)=x+1f(x)=3x−1
Test Equation 1: Test the first equation f(x)=x2+1 with the given points.For (0,1): f(0)=02+1=1.For (1,2): f(1)=12+1=2.For (2,5): f(2)=22+1=5.All three points satisfy the equation f(x)=x2+1.
Test Equation 2: Test the second equation f(x)=2x with the given points.For (0,1): f(0)=20=1.For (1,2): f(1)=21=2.For (2,5): f(2)=22=4, which does not match the given point (2,5).This equation does not represent the function f(x) based on the given points.
Test Equation 3: Test the third equation f(x)=x+1 with the given points.For (0,1): f(0)=0+1=1.For (1,2): f(1)=1+1=2.For (2,5): f(2)=2+1=3, which does not match the given point (2,5).This equation does not represent the function f(x) based on the given points.
Test Equation 4: Test the fourth equation f(x)=3x−1 with the given points.For (0,1): f(0)=3×0−1=−1, which does not match the given point (0,1).This equation does not represent the function f(x) based on the given points.
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