Answer:
One statement that is true is that it equals 50
The answer is B. It is the same as with a circle except in 3D, a chord connects any two points on the surface.
You just need to plug in the information you have into the equation y=mx+b which represents the equation for a line
5=3*-2+b
5=-6+b
b=11
So we now know that the y-intercept is 11, so we can write the equation with the y-intercept and the slope
y=3x+11
Hope this helps