Question

The image of a point under D O, 3 is (7, 2).

The preimage of the point is _____.

(21, 6)
(10, 5)
(4, -1)
(7/3, 2/3)

Answer 1

@n648c788

Answer 2

What does D O mean?

Answer 3

\[3(a,b) = (3a,3b) = (7,2)\]

Answer 4

\[3a = 7 \]
\[3b = 2\]

Answer 5

What is a, b?

Hint:\[7/3 = ?~and~2/3\]

Answer 6

@hhelpplzzzz

Answer 7

thank you:)

Answer 8

You're Welcome :)