Question

help please

Answer 1

Use the x-intercepts of the graph to find an equation for the function whose graph is shown. (Use your graphing calculator to check and adjust your model, if needed.)

Answer 2

@hartnn

Answer 3

I'll drop some hints here:

The standard equation for a parabola is\[y=ax^2+bx+c\].

Identify the two x-intercepts. Note that at each one, y=0.

For example, one x-intercept is (3,0), meaning that when x=3, y=0.

Plug this info into the standard equation for a parabola (above).

Then hold onto the resulting equation.

Do the same for the other horiz. intercept.

You will end up with 2 equations in 2 unknowns (a and b). solve this system for a and b.