Answer:
a. The y-intercept is (0,4500) and means the skydiver starts at 4500 feet.
b. The slope is 1500 means the skydiver is descending 1500 feet per minute.
c. (3,0) means the skydiver reaches the ground after 3 mins.
d. y = -1500x +4500
Explanation:
Recall that a linear function is a line of the form y = mx + b where m is the slope and b is the y-intercept. The y-intercept is the point at which the line crosses the y-axis and is (0,b). Here it is (0,4500). The x-intercept is the point at which the line crosses the x-axis and is (a,0). Here it is (3,0). To find the slope, find the difference between two points. Two points include (0, 4500) and (1, 3000). Subtract 4500-3000 = 1500 and 1-0 = 1. This means the skydiver travels -1500 feet per 1 minute since they are descending.
Place all the vales in the equation y=mx+b.
y=-1500x+4500