Step-by-step explanation:
154 centimeters =
5.05249344 feet (5 feet ⅝ inch)
Lines are perpendicular if the slope of one is the negative reciprocal of the other. In this case the slopes are -8/3 and 8/3, so while negative they are not reciprocal. So no, the two lines intersect but are not perpendicular.
This is indeed a linear equation. y-4x=9 in standard form is y=4x+9.
What are the values in (y 5) is it (y+5) or (y-5) i cannot answer until given the full problem.
(-4)-4 could be some integers to subtract and get -8