A portion of the graph of f(x)=4-x^2 is shown. What is the area of the shaded triangle? Link below
http://mdtp.ucsd.edu/test_new/index.php

Question

A portion of the graph of f(x)=4-x^2 is shown. What is the area of the shaded triangle? Link below
http://mdtp.ucsd.edu/test_new/index.php

marissalovescats · Answer

I don't see a picture on that link.

But think simple, don't psych yourself out. 

It's a picture of a graph yes, but it IS asking for an area of a triangle. 

Which is 1/2(b)(h)

anonymous · Answer

oops I meant to type rectangle instead of triangle

marissalovescats · Answer

Same thing, don't freak out. A rectangle's area is just length times width

marissalovescats · Answer

And if you aren't sure of the lengths of those, the rectangle is on a graph (which has points) so you can use the distance formula to find the length of the 2 segments that are the length and width of the triangle

anonymous · Answer

ohhh, I forgot about the distance formula! Thanks

anonymous · Answer

& It's just a practice test

marissalovescats · Answer

You're welcome. I took AP Calculus AB, and I ALWAYS psyched myself out. Especially with area under the graph (AKA find integral). And it took me awhile to realize I can break whatever the whole is under the graph into smaller simple geometric shapes, take the areas of them all and add them together.

anonymous · Answer

I appreciate it