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# Posts by JDM Educational Staff

link to Difference Between A Function & A Relation (3 Examples)
link to Can Log Be Negative Or Zero? (7 Common Log Questions Answered)
link to What Is The Line Of Best Fit Used For? (3 Applications)
link to When Does A Quadratic Have Real Roots? (3 Ways To Tell)
link to When Does A Quadratic Have No Solution? (3 Ways To Tell)
link to When Does A Quadratic Have One Solution? (3 Ways To Tell)

Relations and functions are important for seeing connections between two data sets. However, it is also important to know the key distinction between a function and a relation. So, what is...

Can Log Be Negative Or Zero? (7 Common Log Questions Answered)

A logarithm is just another way to talk about exponents. When we talk about logs, we are interested in the base, the power (exponent), and the result – and also whether they can be negative...

If you are working with a scatterplot, you are probably looking for a line of best fit as well. It helps to understand what the line of best fit is used for – that way, you can get a better...

When working with quadratic equations, the roots (solutions) can be either real or complex. It is helpful to know what signs to look for to tell when the solutions are real. So, when does a...

When working with quadratic equations, we often see one or two real solutions. However, it is also possible that a quadratic will have no real solution. So, when does a quadratic have no...

When dealing with quadratic equations, we often see either two real solutions or two complex solutions. However, it is also possible that a quadratic will have exactly one solution. So, when...