Math Quiz -Algebra Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. Math Quiz -Algebra Covering: linear equations, inequalities, systems of equations, absolute value expressions, and quadratic equations. 1 / 5 1. Solve the following equation for x: 4x² - 12x = 0. a) x = -3, x = 0 b) x = 3, x = -12 c) x = 0, x = 3 d) x = 4, x = 12 To solve the equation 4x² - 12x = 0, we can first factor out the common factor of 4x: 4x(x - 3) = 0 Now, set each factor equal to zero to solve for x: 4x = 0 => x = 0 x - 3 = 0 => x = 3 Thus, the solution to the equation 4x² - 12x = 0 is x = 0 and x = 3, which corresponds to option C. 2 / 5 2. What is the inverse of the function f(x) = 3x - 2? a) f^(-1)(x) = 3x + 2 b) f^(-1)(x) = 3x - 2 c) f^(-1)(x) = (x + 2) / 3 d) f^(-1)(x) = (x - 2) / 3 To find the inverse of a function, we swap the x and y coordinates (x and f(x), respectively) and then solve for the new f(x): 1. Replace f(x) with y: y = 3x - 2 2. Swap x and y: x = 3y - 2 3. Solve for y: x + 2 = 3y y = (x + 2) / 3 The inverse of the function f(x) = 3x - 2 is f^(-1)(x) = (x + 2) / 3, which corresponds to option C. 3 / 5 3. What is the solution to the absolute value equation |3x - 4| = 8? a) x = -8, x = 4 b) x = 2, x = 4 c) x = 4, x = 8 d) x = 4, x = -4/3 To solve the absolute value equation |3x - 4| = 8, we need to split the equation into two separate equations: 3x - 4 = 8 and 3x - 4 = -8 For the first equation, add 4 to both sides: 3x = 12 Divide by 3: x = 4 For the second equation, add 4 to both sides: 3x = -4 Divide by 3: x = -4/3 Thus, the solution to the absolute value equation |3x - 4| = 8 is x = 4 and x = -4/3, which corresponds to option D. 4 / 5 4. What is the solution to the inequality 2(x - 3) + 4 < 3x + 1? a) x > -3 b) x < -3 c) x > 3 d) x < 3 To solve the inequality 2(x - 3) + 4 < 3x + 1, follow these steps: Step 1: Distribute the 2 inside the parentheses: 2x - 6 + 4 < 3x + 1 Step 2: Simplify the inequality: 2x - 2 < 3x + 1 Step 3: Subtract 2x from both sides of the inequality: -2 < x + 1 Step 4: Subtract 1 from both sides of the inequality: -3 < x Thus, the solution to the inequality 2(x - 3) + 4 < 3x + 1 is x > -3, which corresponds to option A. 5 / 5 5. Which of the following expressions is equivalent to 2x + 3y = 12? a) y = -(2/3)x + 4 b) y = (2/3)x - 4 c) y = (3/2)x + 4 d) y = -(3/2)x - 4 To solve for y, we will isolate it from the equation, 2x + 3y = 12. Step 1: Subtract 2x from both sides of the equation 3y = -2x + 12 Step 2: Divide by 3 to isolate y y = -(2/3)x + 4 So, the equivalent expression is y = -(2/3)x + 4, which corresponds to option A. Your score is 0% Restart Quiz