Answer:
shut up b
sorry gad will elp you
Step-by-step explanation:
Answer:
![y = 2x - 5](https://tex.z-dn.net/?f=y%20%3D%202x%20-%205)
Explanation:
Slope-intercept form formula:
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
For this formula we need the slope to find the slope use the slope formula:
![\frac{y_{2} - y}{x_{2} - x}](https://tex.z-dn.net/?f=%5Cfrac%7By_%7B2%7D%20-%20y%7D%7Bx_%7B2%7D%20-%20x%7D)
Plug in the two points (1,-3) and (3,1)
![\frac{4}{2}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B2%7D%20)
=2
the slope is 2
Now use the slope-interpect formula and plug in the slope (m)
![y = 2x + b](https://tex.z-dn.net/?f=y%20%3D%202x%20%2B%20b)
plug in one point I'll use (3,1)
![1 = 2(3) + b](https://tex.z-dn.net/?f=1%20%3D%202%283%29%20%2B%20b)
1 = 6 +b
1-6=6-6+b
-5 = b
The equation would be:
Answer:
Time taken to reach maximum height=0.875 seconds
Maximum height = 78.25 ft
Step-by-step explanation:
The function which models the height of the ball is given as:![s(t)=-16t^2+28t+66](https://tex.z-dn.net/?f=s%28t%29%3D-16t%5E2%2B28t%2B66)
The function s(t) reaches its maximum height at the axis of symmetry. For a quadratic equation of the form
, the axis of symmetry occurs at
.
In s(t), a=-16, b=28
![t=-\frac{28}{2(-16)}=0.875 seconds](https://tex.z-dn.net/?f=t%3D-%5Cfrac%7B28%7D%7B2%28-16%29%7D%3D0.875%20seconds)
The ball reaches its maximum height after 0.875 seconds
(b)Maximum Height
Given ![s(t)=-16t^2+28t+66](https://tex.z-dn.net/?f=s%28t%29%3D-16t%5E2%2B28t%2B66)
At t=0.875
![s(0.875)=-16(0.875)^2+28(0.875)+66=78.25 ft](https://tex.z-dn.net/?f=s%280.875%29%3D-16%280.875%29%5E2%2B28%280.875%29%2B66%3D78.25%20ft)
Maximum height = 78.25 ft
Graph A shows a consistent relationship between time and distance. We know this fact because as seen in graph A the line is straight and progresses without any changes. The slope and line is consistent, meaning that the relationship between time and distance is also consistent. Some differences between graph a and b is that graph b does no carry on in a straight line, it goes up and down and isn’t consistent. One difference is that graph a has a direct positive relationship, meaning that as the x variable increases, so does the y variable. This isn’t true for graph b though.