In this section, you will learn how
so solve inequalities. "Solving' an
inequality means nding all of its
solutions. A "solution' of an
inequality is a number which when
substituted for the variable makes
the inequality a true statement.
Here is an examp
Completing the
square is a way of
factoring a quadratic
equation.
Completing the Square
1. Isolate variables
2. Divide each number by the squared term
3. Take half of coefcient x term and square it
(don't forget the sign)
4. Add step 3 to both sides of
1. Suppose Joe leaves city A for City B at 60 mph and Mary B for A at 80 mph if
the distance between A and B is 2,800 miles when and where will they meet.
2.If Mary leaves city A for B at 40 mph and Joe B at 60 then I'd the distance from
a to b is 1000 mi
Evaluating Limits
1. Limits of algebraic functions as x -> a
2. Limits of trigonometric functions as x-> a
3. Limits as x approaches innity or negativity innity
Algebraic Function Limits as x approaches a number
Start by "direct substitution" (Let x=a)
Linear Fractional Functions are hyperboles with one verticals asymptote and o e
verticals asymptote
Graph of a rational linear function is a 1
half of a sideways parabola