The y-intercept occurs when x=0.
In your equation y=1.5x, when x=0, y=0. So the y-intercept is (0,0), which is the origin.
If the cost of one DVD is $42.70, to find the price of two, multiply 42.70 by two. The price of two DVDs is $85.40.
Well it really depends because there are four properties of addition; They are commutative, associative, additive identity, and distributive properties.
2.25 will be added into the account of the total of the money
