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)=2xf(x)=3x−1f(x)=x2+1f(x)=x+1
Test f(x)=2x: Let's test each given function with the points provided to see which one fits all three points.First, we will test the point (0,1) with each function.
Test f(x)=3x−1: Testing f(x)=2x with the point (0,1):f(0)=20=1. This matches the y-value of the point (0,1).
Test f(x)=x2+1: Testing f(x)=3x−1 with the point (0,1):f(0)=3(0)−1=−1. This does not match the y-value of the point (0,1), so this function is not a match.
Test f(x)=x+1: Testing f(x)=x2+1 with the point (0,1):f(0)=(0)2+1=1. This matches the y-value of the point (0,1).
Test f(x)=2x: Testing f(x)=x+1 with the point (0,1):f(0)=0+1=1. This matches the y-value of the point (0,1).
Test f(x)=x2+1: Now, let's test the point (1,2) with the remaining functions that matched the first point.
Test f(x)=x+1: Testing f(x)=2x with the point (1,2):f(1)=21=2. This matches the y-value of the point (1,2).
Test f(x)=2x: Testing f(x)=x2+1 with the point (1,2):f(1)=(1)2+1=2. This matches the y-value of the point (1,2).
Test f(x)=x2+1: Testing f(x)=x+1 with the point (1,2):f(1)=1+1=2. This matches the y-value of the point (1,2).
Test f(x)=x2+1: Testing f(x)=x+1 with the point (1,2):f(1)=1+1=2. This matches the y-value of the point (1,2).Finally, let's test the point (2,5) with the remaining functions that matched the first two points.
Test f(x)=x2+1: Testing f(x)=x+1 with the point (1,2):f(1)=1+1=2. This matches the y-value of the point (1,2).Finally, let's test the point (2,5) with the remaining functions that matched the first two points.Testing f(x)=2x with the point (2,5):f(2)=22=4. This does not match the y-value of the point (2,5), so this function is not a match.
Test f(x)=x2+1: Testing f(x)=x+1 with the point (1,2):f(1)=1+1=2. This matches the y-value of the point (1,2).Finally, let's test the point (2,5) with the remaining functions that matched the first two points.Testing f(x)=2x with the point (2,5):f(2)=22=4. This does not match the y-value of the point (2,5), so this function is not a match.Testing f(x)=x2+1 with the point (2,5):f(x)=x+12. This matches the y-value of the point (2,5).
Test f(x)=x2+1: Testing f(x)=x+1 with the point (1,2):f(1)=1+1=2. This matches the y-value of the point (1,2).Finally, let's test the point (2,5) with the remaining functions that matched the first two points.Testing f(x)=2x with the point (2,5):f(2)=22=4. This does not match the y-value of the point (2,5), so this function is not a match.Testing f(x)=x2+1 with the point (2,5):f(x)=x+12. This matches the y-value of the point (2,5).Testing f(x)=x+1 with the point (2,5):f(x)=x+16. This does not match the y-value of the point (2,5), so this function is not a match.
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