Question

The book shows me the answer, but it doesn’t show how to get the answer. If anyone could show me that would be great.

Answer 1

I would have to use a graphing calculator to find the answer:

f(x) = a(x-h)^2 + k

y = mx + b

This is the equation to move a quadratic line.

Your quadratic line is made with this equation: f(x) = -(x-4)^2 + 19

and your linear line is made with this equation: y = 4x - 9

From the graph, you can see that the intercept is at (6,15)

Explanation:

Answer 2

I would have to use a graphing calculator to find the answer:

f(x) = a(x-h)^2 + k

y = mx + b

This is the equation to move a quadratic line.

Your quadratic line is made with this equation: f(x) = -(x-4)^2 + 19

and your linear line is made with this equation: y = 4x - 9

From the graph, you can see that the intercept is at (6,15)