Question

Please help me solve this guys I only need the y-intercept

Answer 1

Answer: y-intercept = (0, -18)

Step-by-step explanation:

This is a quadratic equation question, where the quadratic equation is in the standard form of [y = ax² + bx + c]

The function of [a] in the equation is to determine the maximum/minimum of the parabola. If [a] is positive, then the parabola opens upward, which is a minimum. If [a] is negative, then the parabola opens downward, which is a maximum.

There aren't any particular functions of [b], but it operates with [a] to find the axis of symmetry.

The function of [c] is the y-intercept. The easiest way to prove this is to let x be zero, then we are left with the value [c]

Solve:

Given: y=-x²+8x-18

a = -1

b = 8

c = -18

Therefore, the y-intercept is (0, -18)

Hope this helps!! :)

Please let me know if you have any questions