Here is the link to the playlist of videos that explain all of the math questions in the 2018 April 10th SAT test. The playlists are separated by sections. Section 3 of the math section does not allow the use of calculator, whereas calculator use is permitted in Section 4 of the math section.
Archives for May 2018
SAT math practice question: Functions and real values
Try the following SAT math question that tests an understanding of when functions are defined.
For what values of $a$ is the expression $\sqrt{9-a^2}$ a real number?
- $\quad |a| \geq 9$
- $\quad |a| \leq 9$
- $\quad |a| \geq 3$
- $\quad |a| \leq 3$