Sandy created the two groups of graphs shown at left (3 orange and 3 purple). Why do you think she grouped them together this way?

a

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

- (2, -7)

- lines r and s and lines t and u must be parallel

this is a good question! i'll do some research and come back when i have the answer!