Simple Machines – Wheel and Axle
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Conjecture and Theorem
Conjecture and Theorem Conjecture can be best defined as a hypothesis about a mathematical rule. It is usually created after having witnessed a certain outcome in multiple specific cases. After countless trials are taken to see the validity of a conjecture, if it is proven to be true, it becomes a theorem. A theorem is … Read more
Adding and Subtracting Decimals
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De Morgan’s Laws
De Morgan’s Laws Return to Discrete Math Videos
ILTS Mathematics (208) Practice Test
The ILTS Mathematics exam is administered by the Illinois State Board of Education (ISBE) to assess the knowledge and skills of prospective math teachers in the state of Illinois. Click “Start Test” above to take a free ILTS Mathematics practice test, and check out our premium-quality ILTS test prep resources by clicking the links below! … Read more
Axis of Symmetry Overview
A line of symmetry refers to a line that is drawn through the center of a shape so that it creates two identical halves. Each half is a mirror image of the other. Some shapes have one line of symmetry, like an isosceles triangle, and other shapes have many lines of symmetry. For example, a … Read more
Writing Formulas for Arithmetic Sequences
An arithmetic sequence is a list of numbers that follow a definitive pattern. Each term in an arithmetic sequence is added or subtracted from the previous term. For example, in the sequence three is added to each previous term. This consistent value of change is referred to as the common difference. A sequence can be … Read more
Degrees and Radians Overview
What are Angles? We use degrees as units of measurement for angles, and precisely determining how wide or narrow they are. The small circle symbol “°” is used following a number to denote that degrees are being represented. Note the following classifications: An acute angle is between 0-90° A right angle is 90° An obtuse … Read more
Set Operations with Venn Diagrams
Set Operations with Venn Diagrams Return to Discrete Math Videos
Vertical Asymptotes Overview
A vertical asymptote is an area of a graph where the function is undefined. A graphed line will bend and curve to avoid this region of the graph. Vertical asymptotes are vertical lines that correspond to the zeroes of the denominator in a function. A fraction cannot have zero in the denominator, therefore this region … Read more