Pre-Algebra: Chapter 8-2
Scatter Plots
Scatter plots are data plotted on the x-y axes that are just a bunch of dots. Sometimes, the dots are all over the place, (called no relationship or no correlation), in a positive relationship (the data is moving in an upward direction) or a negative relationship (the data is trending in a downward direction). Here is some more information too!
Do NOT connect the dots in scatter plots. The data is shown in a scatter plot so that we can see data trends. These are NOT linear equations!
Algebra: Chapter 6-1
Factoring Polynomials
Factoring is the reverse of multiplying. To multiply a monomial and a polynomial, we use the distributive property to multiply each term of the polynomial by the monomial. To FACTOR, we do the reverse and FACTOR OUT a common factor. We use the factor common to each term with the greatest possible coefficient and the variable to the greatest power.
Examples:
20x^2 = (4x)(5x) or (x)(20x) or …
5x + 15 = 5*x + 5*3 = 5(x + 3)
3ab^2 + 6a = 3a(b^2) + 3a(2) = 3a(b^2 + 2)