Is each line parallel, perpendicular, or neither parallel nor perpendicular to a line whose slope is -3/4?

In order for a line to be parallel it must have the same slope of -3/4
in order for a line to be perpendicular it must have the inverse of the slope which would be 4/3
if it is neither of the cases listed above it is neither parallel nor perpendicular

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.