Answer:
gradient = - , y- intercept =
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
3x + 4y = 5 ( subtract 3x from both sides )
4y = - 3x + 5 ( divide terms by 4 )
y = - x +
← in slope- intercept form
with slope m = - and y- intercept c =
We have been given that the ball is tossed into air at a speed of 20 feet per second and from a height of 7 feet.
We are supposed to use the formula:
Upon substituting the given values of initial velocity and initial altitude, we get:
We need to figure out the time that will take the ball to reach the ground. In order to do so, we will substitute s(t)=0 and solve for t.
Upon using quadratic formula, we get:
Upon finding the values of t using calculator, we get t=-0.285, 1.535
Therefore it will take the ball approximately 1.54 seconds to hit the ground.