Answer:
points of a are
Step-by-step explanation:
y=69 and x= 46
Answer:
It takes 46 seconds for the plane to reach the ground.
Step-by-step explanation:
We are given the following in the question:
The height of the paper airplane above the ground is given by a function:
[tex]f(x) = -1.5x + 69[/tex]
where f(x) is the height above the ground and x is the time in seconds.
a) The attached image shows the graph for the given equation.
As clear from the graph the unction has a y-intercept of 69 and x-intercept of 46.
b) We have to find the time taken by he plane to reach the ground.
The height of plane on ground is 0
Thus, we can write:
[tex]0 = -1.5x + 69\\1.5x = 69\\x = \displaystyle\frac{69}{1.5}\\\\x = 46[/tex]
c) Thus, it takes 46 seconds for the plane to reach the ground from the top of the tall building to reach a height of 0.
