Triangle ABC is shown below with line DE passing through the center: Triangle ABC is shown with line DE running horizontally through the center of the figure.

If triangle ABC is dilated by a scale factor of three about the center of the triangle, dilated line D'E' will:

be parallel to the original line
shift three units to the right
be perpendicular to the original line
pass through points D and E

true

step-by-step explanation:

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.