Select the function that represents a parabola with vertex at (2,–1) and a point (5,8) on its curve. Question 6 options:

A)

ƒ(x) = (x + 2)2 – 1

B)

ƒ(x) = 2(x + 2)2 – 1

C)

ƒ(x) = (x – 2)2 – 1

D)

ƒ(x) = 2(x – 2)2 – 1

4. find the geometric mean of 4 and 12. 24 8

What is the equation of the graph below? y=sec(x)-4

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning