Answer:

Step-by-step explanation:
The point at the terminal side of an acute angle is given by
.
That is,
and
.
Let r be the length of line segment drawn from the origin to the point and is given by the formula:

Substituting the values of x and y into r,



Thus,
Also,
is given by:

Substituting values of x and r,

The slopes of two parallel lines are equal! They are identical to one another
Answer: The answer would be
D - 12.25x + 3.99 = 77.49
Step-by-step explanation:
If each shirt costs $12.25, that would be 12.25 times “x” amount of shirts. Then, you add the $3.99 shipping amount. Which all equals 77.49.
f(x)= -x^2+4 plotted vertex (0,4)