Which equation represents a line parallel to the y-axis?
1. X=y
2. X=4
3. y=4
4. y=x+4

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units

Acertain company's main source of income is a mobile app. the company's annual profit (in millions of dollars) as a function of the app's price (in dollars) is modeled by p(x)=-2(x-3)(x-11)p(x)=−2(x−3)(x−11) which app prices will result in \$0$0 annual profit? enter the lower price first.