Auma certa hora da manhã, o sol incidindo sobre o topo de um edifício projeta uma sombra de 32 m.no mesmo instante, a sombra de um poste com 9 m de altura, localizado ao lado do edifício, mede 12 m . neste caso, a medida da altura do edifício é?

Step-by-step explanation:

Hey, there!!

Here, the given point is (1,3).

Now, Using one point formula we need to find the equation of the line passing through point (1,3).

Now,

Keeping values,

It is the 1st equation.

Similary, you have another equation,

2y = 4x + 8..............2nd equation.

or, 4x - 2y +8 =0

M2 from equation 2,

Therefore, m2 = 2

Now,

As per the condition of parallel lines,

m1 = m2 = 2

Now, substituting the value of m1 in equation 1st.

(y-3) = 2 (x-1)

y-3 = 2x - 2

or, 2x-y+1 = 0 ......is the required equation.

Hope it helps...