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Monica [59]
3 years ago
13

2. A paper airplane was thrown from the top of a tall building. The height of the paper airplane above the ground can be found u

sing the function f(x) = −1.5x + 69, where x is the time in seconds the airplane has been in the air.
a. Draw the graph of the function

b. How many seconds did it take the paper airplane to reach the ground?

c. Explain your answer.

Mathematics
2 answers:
NikAS [45]3 years ago
6 0

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:

f(x) = -1.5x + 69

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:

0 = -1.5x + 69\\1.5x = 69\\x = \displaystyle\frac{69}{1.5}\\\\x = 46

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.

alina1380 [7]3 years ago
4 0

Answer:

points of a are

Step-by-step explanation:

y=69 and x= 46

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The graph of the function f(x) is shown below.
faust18 [17]
Remember, parenthaees are like < and > and brackets ar like ≤ and ≥

domain is how far the x values go
x is left to right

we see they go from -3 to 5, with a filled in dot at -3 and empty dot at 5
means include -3 but not including 5
so like -3≤x<5
or in interval notation
[-3,5) is the domain



range
highest to lowest y value

range is from y=3 to y=-1
we gots full dots so we use brackets
range is [-1,3]



Domain=[-3,5)
Range=[-1,3]


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Vladimir79 [104]

Answer:

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Example

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Make the payment as soon as you can  

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As soon as you miss a payment or know that you’re going to miss one, call your lender. Doing so may help minimize the damage to your credit rating and can help avoid collection calls.

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