When given a graph, how can you determine the y-intercept in a linear function? Please help if you can :)

It's called the "y-intercept", and it's the value of the point where the line intersects the y-axis. For this line, the y-intercept is "negative 1." You can find the y-intercept by looking at the graph and seeing which point crosses the y-axis. This point will always have an x coordinate of zero.

Step-by-step explanation:

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2