(-6)^-1 without exponent

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?