The v means the square root I hope this helps
The discount price is .80x or 1-.20x.
Answer:
y=4x
Step-by-step explanation:
The equation of a line is y=mx+b, where m is the slope and b is the y intercept.
The slope formula is Δy/Δx, so using the coordinates (1, 4) and (2, 8), the slope is
which equals 4.
The y intercept is 0.
Therefore, the equation is y=4x.
Since angle COB is the central angle of arc CB, the measure of arc CB = 80 degrees
Answer:
B choice
Step-by-step explanation:

where m = slope and b = y-intercept.
The value of m is 3/4. That means slope is 3/4. Changing 3/4 to - 3/4 will make the slope become negative. Therefore the answer is B.