Answer the question about the given function.
-Given the functi $$f ( x ) = - 2 x ^ { 2 } + 4 x + 3$$ , is the point (2, -1) on the graph of f?
A) Yes
B) No

Question

Quizplus · Accepted Answer

To determine if the point (2, -1) is on the graph of $f(x) = -2x^2 + 4x + 3$, substitute $x = 2$ into the function and see if the output is -1. $f(2) = -2(2)^2 + 4(2) + 3 = -8 + 8 + 3 = 3$, which is not equal to -1. Therefore, the point (2, -1) is not on the graph.

Answer the Question About the Given Function f(x)=−2x2+4x+3f ( x ) = - 2 x ^ { 2 } + 4 x + 3f(x)=−2x2+4x+3

Answer the Question About the Given Function $f ( x ) = - 2 x ^ { 2 } + 4 x + 3$