B.) y=3x
The slope of a given line is defined by <em>y=mx+b</em>, where b is the y-intercept (the point at which the line crosses the y-axis) and m is the slope (rise/run). We see that the y-intercept is 0 (because the line hits the y-axis at 0) and the slope is 3 (rise=3 and run=1, so 3/1=3).
:)
Answer:
B.) 
Step-by-step explanation:

A negative and a negative equals a positive. Remove parentheses and simplify

Done.
A theorem states that, given a circle with center C and a point P on the circumference, the tangent line through P and the radius CP are perpendicular.
So, the answer is 90 degrees.
A pentago Which Is A Five Side Figure and a heptagon is a seven sided figure