Graph the quadratic functions y= -2x^2 and y= -2x^2 + 4 on a separate piece of paper. using those graphs compare and contrast the shape and position of the graphs.

Step-by-step explanation:

Both are parabolas open down.

The first one has vertex as (0,0) but second parabola has vertex as (0,4)

The second parabola is nothing but a transformation of the first parabola by a shift of 4 units verticaly up.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl