X 8.4.AP-3 Question Help
During one game, the punter of a team was called upon to punt the ball 8 times. On one of these punts, the punter struck the ball at his own 30-yard line. The height,
h, of the ball above the field in feet as a function
of time, t, in seconds
can be partially modeled by the following table. Answers parts a through f.
t(sec.)
h(t) (ft.) 2.49 28.77 42.09 46.51 37.59 17.52
a. Sketch a scatterplot of the data using your graphing calculator. Choose the correct graph below.
0
0.6
1.2
1.8
2.4
3.0
O A.
ОВ.
c.
OD
a
a
Q
a
E
(All graphs have the viewing window to, 3, 1] by [0, 50, 101.)
b. Use your graphing calculator to obtain a quadratic regression function for this data.
h(t)=0
(Use integers or decimals for any numbers in the expression. Round to four decimal places as needed.)

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

id

step-by-step explanation:

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d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram