2026 ACT Math Formulas
Distance Formula—ANSWER--(ex: Find distance between (5,6) and (1,3)
√(5-1)² + (6-3)²=
√(4)² + (3)²=
√16 + 9=
√25=
5=Distance
Slope—ANSWER--Slope= Rise/Run=Change in Y/Change in X
(EX: Find slope of (5,6) and (1,3)
6-3/5-(-1)=
3/6=
1/2
Slope Intercept—ANSWER--y=mx+b
, Ex: y=2/3x + 5
Midpoint Formula—ANSWER--EX: (3, -2) and (5, 0)
((3+5)/2, (-2+0)/2)
(8/2, -2/2)
(4, -1)
PEMDAS—ANSWER--Parenthesis, Exponents, Multiplication, Division, Add,
Subtract.
EX: 9-2 x (5-3)² + 6÷3=
9-2 x (2)² + 6÷3=
9-2 x (4) +6÷3=
9-8 +2=
9-6=
3
Standard Form of a Quadratic Equation—ANSWER--ax²+bx+c= 0
EX: 2x²-9x+ 18=0
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
Distance Formula—ANSWER--(ex: Find distance between (5,6) and (1,3)
√(5-1)² + (6-3)²=
√(4)² + (3)²=
√16 + 9=
√25=
5=Distance
Slope—ANSWER--Slope= Rise/Run=Change in Y/Change in X
(EX: Find slope of (5,6) and (1,3)
6-3/5-(-1)=
3/6=
1/2
Slope Intercept—ANSWER--y=mx+b
, Ex: y=2/3x + 5
Midpoint Formula—ANSWER--EX: (3, -2) and (5, 0)
((3+5)/2, (-2+0)/2)
(8/2, -2/2)
(4, -1)
PEMDAS—ANSWER--Parenthesis, Exponents, Multiplication, Division, Add,
Subtract.
EX: 9-2 x (5-3)² + 6÷3=
9-2 x (2)² + 6÷3=
9-2 x (4) +6÷3=
9-8 +2=
9-6=
3
Standard Form of a Quadratic Equation—ANSWER--ax²+bx+c= 0
EX: 2x²-9x+ 18=0
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
