Start by listing this until you see that X+Y = 50
X can equal: 4,8,12,16,20,24,28,32,36,40,<u>44</u>
Y can equal: 1.5,3,4.5,<u>6</u>,7.5,9
So...
X=11
Y=4
so... 4 sandwiches were bought, and 11 drinks.
Answer:
D). (1, 0)
Step-by-step explanation:
The parabola opens to the right, so the focus will be to the right of the vertex at (0, 0). The only answer choice with a positive x-value is D.
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The equation of a parabola with vertex (0, 0) can be written as
y^2 = 4px
where p is the distance from the vertex to the focus. Here, that distance is 1.
They intersect at a point called the centroid. See the attached sketch.
