-1/4*x^2-x+3=-1/4*(x^2+4x)+3=-1/4*(x^2+4x+4)+4=-1/4*(x+2)^2+4
x0=-2
The <em><u>correct answer</u></em> is:
As the radius of a circle increases, circumference of the circle increases.
Explanation:
The way the statement is written, the radius of the circle is independent and the circumference of the circle is dependent. This makes the slope the change in circumference per change in radius.
If the independent and dependent variables are switched, then the circumference of the circle will be independent and the radius of the circle will be dependent. This makes the slope the change in radius per change in circumference.
Both of these have the same interpretation.
"150 gallons of water" is the "y-intercept," "the initial value." So, eliminate any of the choices that don't feature 150 as the y-intercept. Bye, bye, A and C.
Now, which one, B or D, might be right? aSK YOUrself: is more water entering the tank than leaving it, or more leaving than entering?
Is the amount of water in the tank increasing or decreasing?
4(-3)^2-5(-13)
-7^2+15
-7^17
