1. the function h = - 4.9x2 + 40x + 1 gives the height of a baseball after it has been hit
until it lands on the ground.
the variable, h, gives the height of the ball in metres.
the variable, x, gives the time in seconds after the ball is hit.
[a] use the table function of a graphing calculator to show a table of values for the
height of the ball until it hits the ground.

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.

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.