The point negative 3 comma negative 5 is on the graph of a function. Which equation must be true regarding the function?
Answer
A
f of negative 3 is equal to negative 5
B
f of negative 5 is equal to negative 3
C
f of negative 3 comma negative 5 is equal to negative 8
D
f of negative 5 comma negative 3 is equal to negative 2
Explanation
A point on a function’s graph has coordinates [?] (input, output), so the point (−3, −5) means the input −3 produces the output −5. Therefore, f(−3) = −5, which is choice A.
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