Ask
your own question, for FREE!

Mathematics

levyjutsu:

ane and Jill want their mom to ride the rollercoaster with them, but she thinks it will be too fast. She asks the girls to find out how fast the rollercoaster will be travelling. They find out that the speed of the rollercoaster, in miles per hour, is modeled by the function g(x) = x4 − 4x2 + 7x − 8, where x is time measured in seconds. How fast is the rollercoaster travelling at 2 seconds?

Still Need Help?

Join the QuestionCove community and study together with friends!

levyjutsu:

nvm i got it

AZ:

You simply replace x with 2 and solve it. 2^4 - 4*(2^2) + (7*2) - 8 = ??

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions
AntonyTheGreatest:
The a value of a function in the form f(x) = ax2 + bx + c is negative. Which statement must be true? The vertex is a maximum.

AntonyTheGreatest:
What is the y-intercept of the quadratic function f(x) = (x u2013 6)(x u2013 2)?

8 hours ago
6 Replies
1 Medal

AntonyTheGreatest:
What is the midpoint of the x-intercepts of f(x) = (x u2013 2)(x u2013 4)? (u2013

9 hours ago
3 Replies
0 Medals

AntonyTheGreatest:
The function f(x) = (x u2212 4)(x u2212 2) is shown. On a coordinate plane, a parabola opens up.

9 hours ago
7 Replies
0 Medals

AntonyTheGreatest:
For all functions of the form f(x) = ax2 + bx + c, which is true when b = 0? The graph will always have zero x-intercepts.

9 hours ago
4 Replies
0 Medals

AntonyTheGreatest:
The axis of symmetry for the graph of the function f(x)=3x2+bx+4 is x equals three-halves.

9 hours ago
21 Replies
0 Medals

AntonyTheGreatest:
The a value of a function in the form f(x) = ax2 + bx + c is negative. Which statement must be true? The vertex is a maximum.

9 hours ago
0 Replies
0 Medals

9 hours ago
0 Replies
0 Medals

AntonyTheGreatest:
On a coordinate plane, a parabola opens up. It goes through (negative 6, 0), has a vertex at (negative 2, negative 16), has a y-intercept at (0, negative 12

9 hours ago
1 Reply
0 Medals

AntonyTheGreatest:
What is the y-intercept of the graph of the function f(x) = x2 + 3x + 5? (0, u201

9 hours ago
2 Replies
0 Medals