Two numbers are 10 units away in different directions from their midpoint, m , on a number line. The product of the numbers is negative 99 Which equation can be used to find m , the midpoint of the two numbers?
Answer
A
m squared minus 25 is equal to negative 99
B
m squared minus 100 is equal to negative 99
C
open paren m minus 10 close paren times open paren m plus 10 close paren is equal to 99
D
open paren m minus 5 close paren times open paren m plus 5 close paren is equal to 99