Rational of course, every natural number, full number and every number that can be written as fraction are rational
Distribute and combine like terms (terms that have the same number of x)
The answer you are looking for is:
r = 3
Answer: y=-3x+7
Step-by-step explanation: The slope of a line that is perpendicular will always be the opposite ( change positive to negative) and the inverse. Since 1/3 is the slope we would change it to negative (-1/3) and flip it. The slope of the new line is -3. Your new equation is y=-3x+b. Now, plug in 4 for x and -5 for y. -5=-3(4)+b. B=7.