The time that the ball is in the air is 2x the time that it takes to reach the maximum value.
In order to find the time at the max value you use the equation -b/2a where b is the value attached to the t and a is the value attached to t^2.
therefore, the time at the max value is -180/(2)(-16)=5.625 seconds
Total time= (5.625)(2)=11.25
Answer:
y=-x-4
Step-by-step explanation:
You can write the equations in point-slope form first.
1) y+3=-(x+1)
2) Then you can convert it into slope intercept form
3) y=-x-1-3
4) y=-x-4
Answer:
90°
Step-by-step explanation:
If you look closely at ADB you see that it is a right triangle. This means that it has a 90° angle. It also means that it measures 90°.
Answer:
x-intercept (0,0)
y-intercept (0,0)
Step-by-step explanation:
The given function is
To find the x-intercept, we substitute y=f(x)=0
This implies that:
Therefore the x-intercept is (0,0)
To find the y-intercept we substitute x=0
The y-intercept is (0,0)
