Question

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Answer 1

Answer:

$\displaystyle [-1, -4] → Vertex \\ [0, -3] → y-intercept \\ [-3, 0], [1, 0] → x-intercepts$

Step-by-step explanation:

The y-intercept is your C, which is −3.

Now, to get both x-intercepts, factor the trinomial:

$\displaystyle [x - 1][x + 3]$

When set equal to zero, you will get −3 and 1.

Finally, to get the vertex, convert this Quadratic Equation to Vertex Form by completing the square, $\displaystyle [\frac{b}{2}]^2$:

$\displaystyle f(x) = x^2 + 2x - 3 \\ f(x) = x^2 + 2x + 1 + k \\ f(x) = x^2 + 2x + 1 - 4 \\ \\ f(x) = [x + 1]^2 - 4 → [-1, -4] = Vertex$

* Recall, −h gives the OPPOSITE terms of what they really are, so do not forget it.

I am joyous to assist you anytime.