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Radicals and exponents (also known as roots and powers) are two common — and oftentimes frustrating — elements of basic algebra. And of co...

In Calculus

• How to Graph Linear Inequalities

You can use the slope-intercept form to graph inequalities. The slope-intercept form is expressed as y = mx + b, where t...

In Calculus

• How to Graph a Rational Function with Numerator Ha

After you calculate all the asymptotes and the x- and y-intercepts for a rational function, you have all the information...

In Calculus

• How to Rationalize a Radical Out of a Denominator

A convention of mathematics is that you don’t leave radicals in the denominator of an expression when you write it...

In Calculus

• How to Rewrite Radicals as Exponents

When you’re given a problem in radical form, you may have an easier time if you rewrite it by using rational expon...

In Calculus

• How to Use a Graphing Calculator

It’s a good idea to purchase a graphing calculator for pre-calculus work. Since the invention of the graphing calc...

In Calculus

• Understanding the Properties of Numbers

Remembering the properties of numbers is important because you use them consistently in pre-calculus. The properties are...

In Calculus

• How to Adjust the Domain and Range of Combined Fun

When you begin combining functions (like adding a polynomial and a square root, for example), the domain of the new comb...

In Calculus

• How to Graph a Rational Function with Numerator an

After you calculate all the asymptotes and the x- and y-intercepts for a rational function, you have all the information...

In Calculus

• How to Graph Functions with More than One Rule: Pi

Functions with more than one rule (called piece-wise functions) are broken into pieces, depending on the input. Although...

In Calculus