HELP
what is another name for a function rule ?!?

Can someone pls ! pls answer all. no explanation needed..

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?