Find SR. Help to tell me if I am correct or wrong.

7

Step-by-step explanation:

R is mid point of IJ and S is midpoint of KJ.

So RS is half of IK.

2x-5=1/2(x+8)

4x-10=x+8

4x-x=8+10

3x=18

x=18/3=6

SR=2x-5=2(6)-5=12-5=7

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function