SAT Math Question with complete solution 2023

SAT Math Question with complete solution 2023quadratic formula [-b ± √(b² - 4ac)] / (2a) slope formula (y₂- y₁) / (x₂- x₁) integers ..., -3, -2, -1, 0, 1, 2, 3, ... rationals fractions (anything expessable as a ratio of integers) reals integers, rationals, plus special #s (like √2 or pi) order of opperations PEMDAS (Parentheses / Exponents / Multiply / Divide / Add / Subtract) Arithmetic Sequences t₁, t₁+ d, t₁+2d, ... Geometric Sequences t₁, t₁· r, t₁· r², ... Factors ex. factors of 52 are 2, 4, 13, and 26 Multiples ex. multiples of 20 are 40, 60, 80, 100, ... percentages part = (percent / 100) x whole average average = sum of terms / number of terms average speed average speed = total distance / total time sum sum = average x (number of terms) mode mode = value in the list that appears most often median median = middle value in the list fundamental counting principle if an event can happen in N ways, and another, independent event can happen in M ways, then both events together can happen in N x M ways.