SOLUTION: Answer the question about the given function. Given the function f(x) = -3x2 - 6x - 6, is the point (-1, -3) on the graph of f?

Algebra ->  Coordinate-system -> SOLUTION: Answer the question about the given function. Given the function f(x) = -3x2 - 6x - 6, is the point (-1, -3) on the graph of f?       Log On


   

Question 1064036: Answer the question about the given function.
Given the function f(x) = -3x2 - 6x - 6, is the point (-1, -3) on the graph of f?
Found 2 solutions by ikleyn, solver91311:
Answer by ikleyn(52814) About Me  (Show Source):
You can put this solution on YOUR website!
.
Substitute x= -1 into the function and make calculations.

Then check if f(-1) is equal to -3.


Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The point given is in the form . Meaning that the value pairs with the value , and the value is the calculated value of the function when is the given value. What you are being asked is does ?

So, write in pencil. Erase every instance of and replace it with . Then do the indicated arithmetic. If the result is , then the given point is, indeed, on the graph. Otherwise not.

John

My calculator said it, I believe it, that settles it