Answer:
Step-by-step explanation:
The vertex is halfway between the focus and the directrix:
((-7, 7) +(-7, 3))/2 = (-14, 10)/2 = (-7, 5) . . . . vertex coordinates
The value of p is the distance from the focus to the vertex:
7 -5 = 2 = p
In vertex form, the equation of the parabola is ...
y = 1/(4p)(x -h)^2 +k . . . . . . vertex (h, k)
y = 1/8(x +7)^2 +5
Answer:
He ran 18.8 ft in 1 minute.
Step-by-step explanation:
Simply divide 112.8 by 6, to get the answer of 18.8, which would be how far he ran in 1 minute.
To check the work you could multiply 18.8 by 6 and it would get you 112.8 . I hope this helps you!
Answer:
y = 2x + 3
Step-by-step explanation:
As we go from (9,7) to (13,5), x increases by 4 and y decreases by 2. Thus, the slope of line p is m = rise/run = -2/4, or m = -1/2.
A line perpendicular to p will have a slope that is the negative reciprocal of the slope of p: -1 / {-1/2}, or m = 2.
One example of such a perpendicular line is y = 2x + 3. Here I borrowed the slope m and invented the y-intercept, b.
Answer:
t = 350
Step-by-step explanation:
subtract 250 from each side, and then you'll have t = 350
I tried to do my homework, but my homework did me instead.
Kyaaaaa~ *lipbites*