Math · Algebra · Thursday, October 22, 2026
Substitute both points into ax + by = c to create a system in a and b, then solve.
In short
On Digital SAT Math questions about algebra, substitute both points into ax + by = c to create a system in a and b, then solve.
Substitute both points into $ax + by = c$ to create a system in $a$ and $b$, then solve.