We have an equation with parentheses. To make our lives easier, first get rid of the parentheses. We do this by using the distributive property.
It is used like this: a(b + c) = ab + ac.
Use the distributive property on the left-hand side.
3(x - 1) = 6 3x - 3 = 6
Now we have an equation that is easier.
The x variable is being multiplied by 3 and added to -3. Reverse all of these operations with their inverse operation.
3x - 3 = 6 3x = 9 <--- I got rid of the -3 term by using the inverse of subtraction. Addition. And I did the same for both sides to keep the equation true. x = 3 <--- The inverse of multiplication is division. So, I divided both sides by 3.
The rate of change would be 7. you would plot your first point on the graph at (-2,0) and the next one would be up 7 and over 1 for your next plot point.
