1) What is the standard form of a linear equation in two variables? a) Ax + By = C b) y = mx + b c) x^2 + y^2 = r^2 d) Ax^2 + By^2 = C 2) Which of the following is a linear equation? a) y = 2x + 3 b) y = x^2 + 1 c) y = 1/x d) y = 2^x 3) What is the slope in y = 3x + 4? a) 3 b) 4 c) 7 d) 1 4) In the equation 2x + 3y = 6, what is the coefficient of y? a) 3 b) 2 c) 6 d) 0 5) What is the y-intercept of y = -5x + 2? a) 2 b) -5 c) 0 d) -2 6) Which point lies on the line y = x + 1? a) (2, 3) b) (1, 1) c) (0, 0) d) (3, 5) 7) What is the x-intercept of 4x - y = 8? a) 2 b) 4 c) 8 d) 0 8) Solve for y: 3x + y = 9 when x = 2. a) 3 b) 6 c) 9 d) 0 9) Which equation represents a horizontal line? a) y = 5 b) x = 5 c) y = x d) y = 0 10) What is the slope of a vertical line? a) Undefined b) 0 c) 1 d) Infinity 11) Find the slope of the line passing through (1, 2) and (3, 6). a) 2 b) 4 c) 1 d) 3 12) Which of the following is not a linear equation? a) x^2 + y = 1 b) x + y = 1 c) 2x - 3y = 5 d) y = 4x - 7 13) What is the solution to the system: x + y = 5 and x - y = 1? a) (3, 2) b) (2, 3) c) (1, 4) d) (4, 1) 14) Which line is parallel to y = 2x + 3? a) y = 2x - 1 b) y = -2x + 3 c) y = 3x + 2 d) y = 1/2x + 3 15) What is the slope of y = -3x + 7? a) -3 b) 3 c) 7 d) 0

Linear Equations in Two Variables

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