Answer:
y = ax squared + bx + c
The variables y and x are graphed on the y and x axes, and a, b and c are constants.
Find the y-intercept for the equation by letting x equal zero. The equation becomes y = 0x squared + 0x + c or y = c.
The y-intercept of a quadratic equation written in the form y = ax squared + bx = c will always be the constant c.
Explanation:
Looking at #16, that would be
f(x) = x^(2) + 4
y -intercept : (0, 4)