Around which line would the following cross-section need to be revolved to create a sphere?

y-axis
y=1
x=2
x=1

Bring the fraction a/a-4 to a denominator of 16-a^2

Which graph represents the given linear function 4x+2y=3

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.