Answer:
xy(y - x)(y + x)
Step-by-step explanation:
take out a common factor xy from both terms
= xy(y² - x²)
y² - x² is a difference of squares and factors in general as (y - x)(y + x)
Hence
xy³ - x³y = xy(x - y)(x + y)
Lamar used 80% of his data, so he used a greater percentage.
You would select the points with the x-values -3 and 2 and use the slope formula:
(-3, -36) and (2,4)

← slope formula
x1 = -3 y1 = -36 and x2 = 2 y2 = 4
Find the GCF of both numerator and denominator and then divide both the denominator and numerator by that and you will get the simplified fraction.
1,134. :DD Hope I helped!