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SAT MATH FORMULAS – QUICK REFERENCE SHEET

The third side of a triangle is between

the difference and sum of the other two

sides.

The number of integers from a to b,

inclusive is b – a + 1

y = ax2 + bx + c y – k = a(x – h)2

Sum = Average · Number

y = mx + b y = b x = a

Parallel lines: same slope.

Perpendicular lines: negative

reciprocal slopes

Total = X + Y – Both + Neither

distance = rate · time

𝒅𝟐 = 𝒂𝟐 + 𝒃𝟐 + 𝒄𝟐

(n – 2) · 180

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