Write the linear equation that describes the graph below in standard form.

What are the soultion(s) to the quadratic equation 40- x^2=0

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.

How is working backward similar to solving an equation?