Step-by-step explanation:
Erase the dot points you already have. We are supposed to substitute those values in the right side of problem 1 into the function as x.
For example if x=-4
If x=-2
If x=0
So our point should be
-4,9
-2,7
0,5
-2,3
-4,1.
The range is all possible y values in a function. Since this is discrete and we are given the domain, our range will just be the y value of the points you graphed.
(9,7,5,3,1)
Y=kx+b
2k+b=-1
6k+b=1
6k+b-2k-b=2
4k=2
k=1/2
b=-2
y=1/2x-2
So your answer is option A
Were there angles given? you just didn't quite give enough information to do this quickly. But I'll try, so a^2 plus b^2 is 400, and a+b is over 20, so we know that much. Therefore we find two numbers that equal 400 when squared and added and are more than 20. And since it's isosceles the other two sides must equal, the number you end up getting is 14.14213561 for the two sides. Then to find area you are gonna square that since it's base times height and get 200 then divide that by two, which is 100 units^2.
This is solution.
Click on the photo to view full solution.
