akitchen10
20.01.2020 •
Mathematics
Matching for questions 6-9, match the equation to its corresponding graph.
6) y=-2x^2+2
7) y=-x^2
8) y=2x^2
9) y=3x^2-4
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Ответ:
Equation of a parabola in vertex form is y=(x-h)^2+k.
where (h,k) is the vertex.
6) The given equation is y=
Comparing with vertex form of parabola equation we have:
This has a vertex of (0,2)
Graph A has the same vertex (0,2)
7) Given equation y=
As there is a - sign so parabola will open down and vertex is (0,0)
Graph D is the right graph.
8) Given equation is : y=2
The vertex is (0,0) and parabola will open up.
Graph C represents the same.
9) The given equation is :y=3 Its vertex is (0,-4)
THis graph is B .
Ответ: