With absolute value, try to think of it as, “the absolute value of…..” the thing that is inside the absolute value bars. “The” implies it’s one thing. So taking the absolute value of -6 or 6 gives …

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## Chain for Derivatives, Add constant for indefinite integrals

We started by reviewing the chain rule. Sometimes he would get mixed up and apply something that looked like the chain rule to the end of an integral. For indefinite integrals, you add a constant to …

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## Algebra Word Problem with Fractions

## Calculus, reviewing trig functions and the chain rule

We looked at problems with integration involving trig functions. That led to reviewing two areas, trig functions of common angles and going over the chain rule. Spent a bit of time on both of those …

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## “The circumference of a circle is ____. What is the diameter?”

There is an equation that relates the diameter and circumference. The diameter is two times the radius. So you can rearrange the variables in the equation to find the part that is missing. …

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## “31.36 is 49% of what number?”

49% of what number means 49% multiplied by a number. You probably want to replace ‘a number’ with a single letter variable. And it’s also probably convenient to convert the percentage into a decimal …