Steven gained 100 points.
To calculate the gain or lose of any 2 numbers, always do
Final - Initial
So,
-50 - -150
Is like saying
I have negative 50, and I take away negative 150.
Taking away negative numbers is just addition.
-50 + 150 = 100
To determine what the line looks like, simply change it to y = mx + b form. Then simply either make a table of values. And substitute any points into the equation and obtain points to plot on the graph. Or you can simply plot the graph by using the slope of the equation.
Y = 8 - 6x/2
Y = 4 - 3x
Y = -3x + 4.
This would be the rearranged equation.
