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:

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315