Answer:
the formula for a function d(x) that describes the distance is 
Step-by-step explanation:
We are going to define final point
, and initial point
, then we can use
, so we obtain
, by developing it 
This formula describes the distance between those two points and involves x
To graph the equations, rewrite the equations written in standard form to slope-intercept form of the equation.

Answer:
C) The square root of terms separated by addition and subtraction cannot be calculated individually.
Step-by-step explanation:
sqrt(b² - 4ac) is not equal to
b - sqrt(4ac)
Because when you square b - sqrt(4ac), it's not b² - 4ac..
(b- sqrt(4ac))² = b² - 2bsqrt(4ac) + 4ac