(x-h)^2=4p(y-k)
vertex is (h,k)
p is the distance from focus to vertex and distance from vertex to directix (vertex is in middle of directix and focus)
if p is positive, the parabola opens up and the focus is above the directix
if p is negative, the parabola opens down and the focus is below the directix
we see the directix is over the focus (1>-1) so the parabola opens down and p is negative
distance from (5,-1) to y=1 is 2 units
2/2=1
p=-1 since p is negative
1 up from (5,-1) is (5,0)
veretx is (5,0)
(x-5)^2=4(-1)(y-0)
(x-5)^2=-4y is the equation
-A rectangle<span> is a four-sided shape each angle is a </span>right angle<span>.
</span>
-A rhombus is a four-sided figure and all sides have equal length. Opposite sides are parallel and opposite angles are equal.
-A square has equal sides and every angle is a right angle. Opposite sides are parallel.
-A parallelogram<span> has opposite sides parallel and the sides lengths are the same. Opposite angles are equal </span>
Answer:
i don't understand
Step-by-step explanation:
Answer:
6x-8
Step-by-step explanation:
you multiply 2*3x=6x then 4*2=8
therefore 6x-8=(3x-4)2
Y = mx + c
If y = 4, and x = 0, then:
4 = -1 (0) + c
c = 4
If c = 4:
y = -1 (2) + 4
y = -2 +4
y = 2
If you plug in the different values of x in each equation, the answer should be:
2,0,-2
