Which values from the set (-6,-4,-3,-1,0,2) satisfy this inequality? - 1/2 x + 3 > 5
1 answer:
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Answer:
1)
2)
3)
4)
Step-by-step explanation:
1)
We know that
So,
2)
We know that
So,
3)
We know that
So,
4)
We know that
So,
So hmmm check the picture below
so... the vertex is "p" distance from the focus and the directrix, thus, the vertex is really half-way between both
in this case, 2 units up from the focus or 2 units down from the directrix, and thus it lands at 3,3
now, the "p" distance is 2, however, the directrix is up, the focus point is below it, the parabola opens towards the focus point, thus, the parabola is opening downwards, and the squared variable is the "x"
because the parabola opens downwards, "p" is negative, and thus, -2
now, let's plug all those fellows in then
so... the vertex is "p" distance from the focus and the directrix, thus, the vertex is really half-way between both
in this case, 2 units up from the focus or 2 units down from the directrix, and thus it lands at 3,3
now, the "p" distance is 2, however, the directrix is up, the focus point is below it, the parabola opens towards the focus point, thus, the parabola is opening downwards, and the squared variable is the "x"
because the parabola opens downwards, "p" is negative, and thus, -2
now, let's plug all those fellows in then
Answer:
Choice a:
Step-by-step explanation:
All you have to do on this one is add the 7 on both sides.
So the answer is anything greater than 5.