Answer:
B 
Step-by-step explanation:
This is correct because when solved it has the same slope as line <em>k.</em>
The slope of <em>k</em> is 3/2.
first subtract 3x from both sides
next divide both sides by -2
this shows that the slope 3/2 is the same as line <em>k</em>
Answer:
it is 2,4
Step-by-step explanation:
The point that they meet is 2,4 . It means X+ is 2 and Y+ is 4 .
You can write a as their meet point . you should answer like this a(2,4) .
7 to the power of 7 is : 823543!
The answer to your question is(1,2)
The equation gives the height of the ball. That is, h is the height of the ball. t is the time. Since we are looking for the time at which the height is 8 (h=8), we need to set the equation equal to 8 and solve for t. We do this as follows:
This is a quadratic equation and as it is set equal to 0 we can solve it using the quadratic formula. That formula is:
You might recall seeing this as "x=..." but since our equation is in terms of t we use "t-=..."
In order to use the formula we need to identify a, b and c.
a = the coefficient (number in front of)
= 16.
b = the coefficient of t = -60
c = the constant (the number that is by itself) = 7
Substituting these into the quadratic formula gives us:
As we have "plus minus" (this is usually written in symbols with a plus sign over a minus sign) we split the equation in two and obtain:
and
So the height is 8 feet at t = 3.63 and t=.12
It should make sense that there are two times. The ball goes up, reaches it's highest height and then comes back down. As such the height will be 8 at some point on the way up and also at some point on the way down.
