B) The perimeter of the shape is 25.71 cm
1 answer:
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Axis of symmetry is a line passing through the vertex which divides the curge into two parts such tha each part looks the same.
For
, the 'x' part is squared and the coefficient of 
is positive. Hence, the curve will be a parabola facing up which means that the axis of symmetry will be a vertical line. i.e. x = m.
Investigating, f(-1) =
f(-1.5) =
f(-2) =
From these, the curve has a vertex at point (-1.5, -6)
Therefore the axis of symmetry is line x = -1.5 (i.e. the third option)
For
Investigating, f(-1) =
f(-1.5) =
f(-2) =
From these, the curve has a vertex at point (-1.5, -6)
Therefore the axis of symmetry is line x = -1.5 (i.e. the third option)
Check the picture below.
so we can say that two sides are "4" each in length, since opposite sides are equal, let's find how long the slanted sides are.
