Afunction is a relation if and only if the x-values do not repeat in a given set.
true or false

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3