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# Tutor profile: Dustin M.

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Dustin M.
Economics Student
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## Questions

### Subject:Linear Algebra

TutorMe
Question:

How do I graph an equation like $$4x+5$$?

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Dustin M.

In order to graph this equation we need to remember $$y=mx+b$$. This is the basic linear equation in algebra. $$m$$ is the slope of the equation. Slope is the rise over the run, or $$\frac{y}{x}$$. The $$b$$ is the y-intercept. We can use all of this information to help you graph your unique equation.

### Subject:Algebra

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Question:

What is the quadratic equation, and how do I solve it?

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Dustin M.

The quadratic equation is a formula that is used to find the roots of a function, when the function is hard to, or unable to be factored efficiently. For Example if you have the equation: "$$2x^{2}+59x+4$$" it can look very difficult to factor. For this we must use the quadratic equation which looks like: $$\frac{-b+-\sqrt{b^{2}+2ac}}{2a}$$. After this I can explain the rest of solving your unique equation to you!

### Subject:Microeconomics

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Question:

What is a normal good?

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Dustin M.

Normal goods are associated with higher income in a sense that if your income is higher, you will purchase more of that good. For example, healthcare, if you have more money, you are more likely to spend more on healthcare, this makes healthcare a normal good.

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