Function f is defined by the equation f(x)= 2x + 4.

What is f(10)?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

True or false look at the picture pls : /

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?