[ ISN} and {TSW} so the answer is D
Answer:
1/4
Step-by-step explanation:
y = 1/4x -4
This equation is in the form
y= mx+b where m is the slope and b is the y intercept
The slope is 1/4
When working with two equations (aka a system of equations), the solution is (or the solutions are) where the graphs intersect.
If they intersect once, there's one solution.
If they intersect twice, there are two solutions.
The solution IS the point(s) of intersection.
Every point on a line is also a solution to the equation that makes the line. Since that interseciton point is on both lines, it's a solution for both lines.
Answer is 3 seconds
When the bullet reaches the ground, ground being x in graph (and here its s which is = 0)
s = -16t^2 + 48t
s = 0, solve for t
0 = -16t^2 + 48t
0 = t ( -16t + 48)
0 = 16t ( - t + 3)
now you have two equation
0 = 16t and 0 = -t +3 ( you can look at the graph line touches x twice)
0 = 16 t
0 = t ( you know its false, because time = 0)
You are left with
0 = -t + 3
t = 3
It takes 3 seconds for the bullet to return to the ground.
// Hope this helps.