Question

Use the graph and table below to determine if the statement is true or false. Then, explain your reasoning.

f(3)=4
True False

Answer 1

False

Explanation:

one way to find what f(3) equals is to look at the number 3 on the x-axis and see it's y-coordinate, which is 5 not 4

another way is to use the data in the table to figure out the equation of the quadratic equation: it's y = x²-4

so f(3) = 3²-4, which is 5