Which algebraic representation shows an enlargement?
(x, y) → (12x, 12y)
(x, y) → (3x, y)
(x, y) → (x+3, y+3)
(x, y) → (3x, 3y)

(x, y) → (12x, 12y)

(x, y) → (3x, 3y)

Step-by-step explanation:

When we enlarge by a scale factor of k, about the origin, the rule is

An enlargement could be a magnification or a reduction.

When

the enlargement is a reduction.

When

the enlargement is a magnification.

Therefore we have two correct answers.

(x, y) → (12x, 12y)

(x, y) → (3x, 3y)

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: