Step-by-step explanation:
4x - 6 = 2x + 4
2x = 10
x = 5
y = 2x + 4
y = 2(5) + 4
y = 14
Equation of a parabola: (x - h)²<span> = 4p (y - k), where the </span>focus<span> is (h, k + p) and the </span>directrix<span> is y = k - p
in this case, the directric is x=6, so the parabola opens sideways, the equation becomes </span>(y<span> - </span>k)²<span> = 4p (</span>x<span> - </span>h<span>), where the </span>focus is (h<span> + </span>p<span>, </span>k) and the directrix is x<span> = </span>h<span> - </span>p<span>.
</span>h-p=6
h+p=-2
solve: h=2, p=-4
k=6
plug in the h, p, and k values, so the equation is (y-6)²=-16(x-2)
Answer:
(0.78,0)
Step-by-step explanation:
I would use the quadratic formula.
So let's put both of these into out calculator
2 + sqrt(6)/2 and 2-sqrt(6)/2
One of them should be approximately 3.22 as the question suggests.
3.22 0.78
So the other x-intercept is approximately (0.78,0)
Step-by-step explanation:
you need to substitute the x in (7x +2y=13) with (x=2y+11) to solve it
A×3×b
=3x×3×(3x-4i)
=9x×(3x-4i)
=27x²-36xi
Hope my answer helped u :)