F(x) = x2 – 2x - 8
Use the quadratic function graphed to answer the questions.
1.
What is the y-intercept? Put a square around it on the graph.

The y-intercept is the point (0,-8)

see the attached figure

Step-by-step explanation:

we have

we know that

The y-intercept is the value of the function f(x) when the value of x is equal to zero

so

For x=0

therefore

The y-intercept is the point (0,-8)

see the attached figure to better understand the problem

whats the question?

step-by-step explanation:

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

step-by-step explanation: