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SAT Mathematics QUESTION #5480
Question 1
In the $xy$-plane, a parabola has vertex $(9, -14)$ and intersects the $x$-axis at two points. If the equation is $y = ax^2 + bx + c$, which of the following could be $a + b + c$?
  • -23
  • -19✔️
  • -14
  • -12
Correct Answer Explanation
$a+b+c$ is the value of the function at $x=1$ (i.e., $f(1)$). With the vertex at $x=9$, $f(1)$ could be $-19$ depending on the parabola's width.