Here is the link to the playlist of videos that explain all of the math questions in the two math modules that are part of the Linear PSAT Practice Test 1 released by Collegeboard. Please note that there is a significant overlap between the Linear PSAT and the Digital PSAT practice tests. I recommend that you take the digital PSAT first and then only use the Linear PSAT for additional practice.
Bluebook Digital PSAT Practice Test 1: Video explanations posted
Here is the link to the playlist of videos that explain all of the math questions in the three math modules that are part of the Digital PSAT Practice Test 1 released by Collegeboard in the Bluebook app.
2023 May SAT QAS Test: Video explanations posted
Here is the link to the playlist of videos that explain all of the math questions in the 2023 May SAT QAS that was held in the US on the 6th of May.
SAT math practice question: Exponent equations
Try the following SAT math practice question (Calculator Permitted) that tests your understanding of algebraically manipulating exponent expressions.
Question(Calculator Permitted):
$$ (\sqrt{27})^{m} = \sqrt[3]{(81)^{n}} $$
If $m$ and $n$ are positive numbers in the equation above, what is the value of $\displaystyle \frac{m}{n}$ ?
- $\quad \displaystyle \frac{3}{4}$
- $\quad \displaystyle \frac{8}{9}$
- $\quad \displaystyle \frac{9}{8}$
- $\quad \displaystyle \frac{4}{3}$
SAT math practice question: Exponential functions
Try the following SAT math practice question (Calculator Permitted) that tests your understanding of percent changes in exponential functions.
Question(Calculator Permitted):
The exponential function $h$ decreases by $36\%$ for each increase by $2$ in the value of $x$. Which of the following could define $h$ ?
- $\quad h(x)=3(0.36)^x$
- $\quad h(x)=2(0.64)^x$
- $\quad h(x)=3(0.8)^x$
- $\quad h(x)=2(1.36)^x$
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