The area of the triangle below is 7.5 units
1) Start with 4 and add 2 repeatedly
2) Start with 2 and multiply by 2 repeatedly
3) 15, 18, 21
Let f(x)=0, you'll get x=3 and x=-5, those are the x-intercepts of the function.
First, what's 3 to the power of 8?
Then what's 3 to the power of 10
Now subtract them by each other for your answer
Yes because no same x-valu resulted in different y-values.
