A potato gun is a device made out of plastic pipe that launches a potato using compressed air. They can be great fun, and even educational for physics and math, as this question illustrates. A potato launched by a particular potato gun has a height described by h ( t ) = − 16 t 2 + 124 t + 4 h(t)=-16t2+124t+4. When is the potato 224 feet in the air?

The potato is 224 feet in the air after 2.75 second on the way up and after 5 seconds on the way back down.

Step-by-step explanation:

Given :  A potato launched by a particular potato gun has a height described by  .

To find : When is the potato 224 feet in the air?

Solution :

When the potato is 224 feet in the air i.e.

Substitute in the equation ,

Applying quadratic formula,

Here, a=4, b=-31 and c=55

The potato is 224 feet in the air after 2.75 second on the way up and after 5 seconds on the way back down.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.