Anyone know the answer?

Step-by-step explanation:

let eqn be y = mx + b.

m = 80/10 = 8

sub (0, 0):

0 = 8(0) + b

b = 0

therefore equation is y = 8x

Topic: coordinate geometry

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g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

i think it would be 42cm