Df is dilated from the origin to create d'f' at d (0,6) and f (4.5, 3). what scale factor was df dilated by?
0.75
13
1.5
2.5

answer: 2 and 1

step-by-step explanation: got this question

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

b