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Interpreting nonlinear expressions — Basic example

Watch Sal work through a basic Interpreting nonlinear expressions problem.

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• Since the SAT is timed, would it be wiser to use his second method rather than first because it saves time?
• Yes, Sal explains multiple methods to solve the problems and you would pick the one you prefer the most.
• Ain't there shortcut methods. Khan academy solves questions in a way that it consumes lots of time.
• Yes, Sal tries to solve selected random problems on the SAT in a more detailed manner.
• These kinds of problems always sound confusing to me. Guess I just have to slow down and read clearly.
• this is in no way a basic example.the video is suppose to help you but this is something else
• I still don't get why he multiplied it by the 10^6 to the 0.75. Please explain.
• He used the law of exponents-(a^m)^n=a^mn
• One question. All these topics could be either in the section with calculator or that without? So you have to know how to do them without calc? Are there exceptions?
• What is the definition of basal metabolic
• Ha i had to google this....the rate at which the body uses energy while at rest to keep vital functions going, such as breathing and keeping warm.
(1 vote)
• Simple elimination would solve this question in about 15 seconds.
A wouldn't work because the metabolic rate of the elephant is greater than that of the mouse.
B wouldn't work for the same reason, as it is stating the mouse's metabolic rate is faster.
C is possible, as the elephant's metabolism is stated to be faster.
D wouldn't work, as the base body mass is multiplied by an exponent and the final value will not be in the same proportions.
• Nice logic! Unfortunately, not everybody will be able to narrow down a question to one answer just like that, and almost no one would be able to do so for every question, which is why the video exists. But doing great on the SAT is really all about finding these shortcuts that allow you to choose answers quickly and with certainty.
• At , how do you know to put the 10 to the 6th power in the parenthesis?