Solve the system of equations using elimination. How many solutions does the system have?
1 answer:
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Step-by-step explanation:
It is all done I am not sure if it is correct
Answer:
Step-by-step explanation:
The directrix of the parabola is the horizontal line with the eqaution The focus of the parabola is at point (-4,10), than the axis of symmetry of the parabola is the perpendicular line to the directrix passing through the focus. Its equation is
The distance between the directrix and the focus is so
and the vertex is at point
Parabola goes in positive y-direction, hence its equation is
where is the vertex, so the equation of this parabola is
Check the picture below.
now, the midsegment of a triangle, besides being half the base, we have to bear in mind that is a "mid" segment, is a segment that lies half-way along the segments it touches.
so for the triangle above, well, the midsegment DE is cutting the segment BC it two equal halves, BE and EC, that means that .
