A baseball is thrown directly upward with an initial velocity of 98 feet per second (or approximately 67 mph) from an initial height of 7 feet. The height of the ball (in feet) after t seconds is given by the formula: h(t) = -16t2 + 98t + 7 (If there was no air resistance, this equation would give accurate results. However, in reality, the air slows down the baseball and it would not actually go as high as you will calculate).
a. Draw a graph of the function by hand. Number the x-axis from 0 to 7 and the y-axis from 0 to 160. Make sure to keep a consistent scale and accurately label the x- and y-axes by what they represent in words. Use a ruler and graph paper to make a neat graph.
b.
c.
Find the vertex. Show all work.
What is the maximum height of the ball? How is this represented on the graph?
d.
on the graph?
After how many seconds will the ball reach its maximum height? How is this represented
e. After how many seconds will the ball hit the ground? Show all work, and express your solution as an exact simplified radical and as a decimal approximation to the nearest 0.01 seconds. How is this represented on the graph?

idk

step-by-step explanation:

use that smart brain

c. (3,2,6) is the answer.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

the speed is   miles per hour > is false

step-by-step explanation:

we know that  

a relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

in a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

the graph shown in the figure represent a direct variation

the slope of the line represent the speed

for the point

substitute the values of x and y

the linear equation is equal to

statements

case a) it takes hours to go miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

case b) the speed is   miles per hour

the statement is false

because the speed is

case c) the unit rate for the trip is

the statement is true

because the speed is equal to the slope of the linear equation

case d) it took minutes to go the first miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct