If the y intercept remains the same and the slope is doubled, what will be the x intercept? This is with y=-5/2x+3.

Question

If the y intercept remains the same and the slope is doubled, what will be the x intercept?  This is with y=-5/2x+3.

anonymous · Answer

Double the slope. So -5/2 becomes -5. 
Then y=-5x+3
Set y=0 and solve for x.

anonymous · Answer

A sphere has a volume of 7235 cubic centimeters and a surface area of 1809 square centimeters.  What is the radius of the sphere?

anonymous · Answer

Well you can use either the surface area or volume to solve for radius. V=(4/3)*pi*r^3
SA = 4*pi*r^2. 
You are given V and SA. r is then the only unknown.