Answer:
7x+14=0, 7x=-14, x= -2
Step-by-step explanation:
add like terms, then get x on one side, number on the other, then divide both sides by 7
Y1 is the simplest parabola. Its vertex is at (0,0) and it passes thru (2,4). This is enough info to conclude that y1 = x^2.
y4, the lower red graph, is a bit more of a challenge. We can easily identify its vertex, which is (-4,0), and several points on the grah, such as (2,-3).
Let's try this: assume that the general equation for a parabola is
y-k = a(x-h)^2, where (h,k) is the vertex. Subst. the known values,
-3-(-4) = a(2-0)^2. Then 1 = a(2)^2, or 1 = 4a, or a = 1/4.
The equation of parabola y4 is y+4 = (1/4)x^2
Or you could elim. the fraction and write the eqn as 4y+16=x^2, or
4y = x^2-16, or y = (1/4)x - 4. Take your pick! Hope this helps you find "a" for the other parabolas.
<h2>
Answer: 90 rabbits</h2>
<em></em>
<h3><em>
Step-by-step explanation:</em></h3>
<em>you will need 10 for every 3 rabbits so if you count in tens and three's </em>
<em>3=10</em>
<em>6=20</em>
<em>9=30</em>
<em>and so on..</em>
<em>when you get to 27 you'll be at 90 </em>
<em>27=90 </em>
<em>hope u understand :></em>
Roughly 24, but there's possibly like nine more. I got 24 without getting too confused
