20 points!
what is the equation of this line?

y = −4x
y = 4x
y = −1/4x
y = 1/4x

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Change negative exponents to positive. then solve. round to four decimal places

How do i i solve this equation? -18 = x/3 + 3