Question 1197123
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Hi
 y = -x^2 + 2x + 3
x	y      Point
-2	-5    (-2,-5)
-1	0     (-1,0)
0	3     (0,3)
1	4     (1,4)
2	3      (2,3)
3	0     (3,0)
4	-5    (4,-5)

Plot Points
{{{drawing(300,300,   -6, 6, -6, 6, grid(1),

circle(4, -5,0.3),
circle(0, 3,0.3),
circle(1,4, 0.3),
circle(2, 3, 0.3),
circle(-2,-5, 0.3),
circle(-1,0, 0.3),
circle(3,0, 0.3),
graph( 300, 300, -6, 6, -6, 6,0)) }}}
 connect the points with a smooth graph.  
{{{drawing(300,300,   -6, 6, -6, 6, grid(1),

circle(4, -5,0.3),
circle(0, 3,0.3),
circle(1,4, 0.3),
circle(2, 3, 0.3),
circle(-2,-5, 0.3),
circle(-1,0, 0.3),
circle(3,0, 0.3),
graph( 300, 300, -6, 6, -6, 6,0,-x^2 + 2x + 3 )) }}}

Wish You the Best in your Studies.
 
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