For the graphed exponential equation, calculate the average rate of change from x = -2 to x = 1. A.2/3
B.7/3
C.3
D.4

If i'm correct the answer is $15.97

Element 17 is chlorine it is a group 7 element(halogen) and belongs to period 3 of the periodic table

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.