Name: SAT Math Help & School Math Mastery
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#40211

graphs

quadratic equations

easy

30 sec

The graph of a quadratic function $y = f (x)$ is shown in the $x y$ -plane. The parabola opens upwards, its vertex is at $(1, 3)$ , and it passes through the point $(0, 4)$ . Which of the following is the equation of the function?

A.

$f (x) = (x + 1)^{2} + 3$

B.

$f (x) = (x - 1)^{2} + 3$

C.

$f (x) = (x - 1)^{2} + 4$

D.

$f (x) = 2 (x - 1)^{2} + 3$