Answer:
<em>t = 5 seconds</em>
Step-by-step explanation:
We must solve the equation of movement of the ball as a function of time in seconds.
We must find how many seconds it takes until the ball touches the ground. When the ball touches the ground, the height b (t) = 0
Then we equate the equation to zero and solve for t.
Use the quadratic formula.
Where
We take the positive solution
<em>t = 5 seconds</em>
Did you mean to answer someone else’s question?
Answer:
X = - 5/3 or X = -1.6
Step-by-step explanation:
Move variable to the left hand side and change its sign
Collect like terms
Divide both sides of the equation by -3
When in doubt, draw a picture. The vertex of the equation is at (3,0) and the y-intercept is at (0,4.5). The answer is D
First find the slope(m)
Slope= y2-y1/x2-x1= (1-(-5))/(-1-(-2))= 6/1 = 6
Then find the y intercept (move up six and right one from (-1, 1) to get (0, 7)
The y-intercept is y=7
Now make the equation
Y= slope(x) + y-intercept
Y=6x+7
