A function is an equation which shows the relationship between the input x and the output y and where there is exactly one output for each input. ... Functions are usually represented by a function rule where you express the dependent variable, y, in terms of the independent variable, x.
The best way to solve is by using elimination method. 20x = -58 - 2y 17x = -49 - 2y Multiply second equation by -1 20x = -58 - 2y -17x = 49 + 2y Add equations. 3x = -9 Divide. x = -3 Plug in -3 into one of the equations. 17(-3) = -49 - 2y -51 = -49 - 2y Add 49 to both sides. -2 = -2y Divide. 1 = y So your solution is (-3, 1). I hope this helps love! :)
We have to represent earning 17. When we earn, we are adding. An integer is a positive or negative number. So +17 is an integer, and it shows we added 17.
