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Factor polynomials using quadratic methods
By Khan Academy
Sal factors 35k^2+100k-15 as 5(k+3)(7k-1).
Expressions with unknown variables
By Khan Academy
Sal solved a few examples where we need to evaluate an expression, but we don't know the individual variable values.
Factor quadratics with a leading coefficient of 1
By Khan Academy
Can't get enough of Sal factoring simple quadratics? Here's a handful of examples just for you!
Determine the end behavior of rational functions
By Khan Academy
Sal analyzes the function f(x)=(3x^2-18x-81)/(6x^2-54) and determines its horizontal asymptotes, vertical asymptotes, and removable discontinuities.
Graphing points
By Khan Academy
We're plotting an ordered pair on the x (horizontal) axis and y (vertical) axis of the coordinate plane.
Writing inequalities to describe real-world situations
By Khan Academy
Learn how to graph an inequality on a number line to indicate which values make it true.
Rational numbers on the number line
By Khan Academy
We're mixing it up by placing both fractions and decimals on the same number line. Great practice because you need to move effortlessly between the two.
Integer addition and subtraction: find the missing value
By Khan Academy
Sal solves more missing value problems: 4 = -8 - __ ������������and ������������__ - (-2) = -7 ������������and ������������-4 = __ - 9
Experimental probability
By Khan Academy
We give you an introduction to probability through the example of flipping a quarter and rolling a die.
