Question

A paper airplane was thrown from the top of a tall building.The height of the paper airplane above the ground can be found using the function `y=-1.5x+60` , where `x` is the time in seconds the airplane has been in the air.


Jayden made this table to figure out how high the plane was at different times.
0 | 60
10 | 45
20 | 30
30 | 15
40 | 0


How would the equation `y=-1.5x+60` change if the height at 0 seconds was 75?

Answer 1

The new equation will be $y=-1.5x+75$

Since the height at 0 seconds will be 75, it means that 15 has been added to the height at each time instant.

As a result, the gradient will remain $-1.5$, but the y-intercept will become 75. Therefore the equation will only change at the intercept.

The new equation will be $y=-1.5x+75$

Learn more about slopes and intercepts: https://brainly.com/question/1201010