# 1 determine whether relation function 2 7 3 5 6 4 9 6 10 1 not function b

1. Determine whether the relation is a function. {(-2, -7), (3, -5), (6, -4), (9, -6), (10, -1)} A) Not a function B) Function 2. Determine whether the relation is a function. {(-5, -4), (-2, 9), (-1, -2), (-1, 7)} A) Function B) Not a function 3. Determine whether the relation is a function. {(-7, -1), (-7, 2), (-1, 8), (3, 3), (10, -7)} A) Not a function B) Function 4. Determine whether the relation is a function. {(1, -3), (1, 1), (6, -8), (9, -3), (11, -3)} A) Not a function B) Function 5. Determine whether the relation is a function. {(-6, -9), (-2, 1), (1, -1), (7, -7)} A) Not a function B) Function 6. Determine whether the equation defines y as a function of x. x + y = 9 A) y is a function of x B) y is not a function of x 7. Determine whether the equation defines y as a function of x. x2 + y2 = 1 A) y is a function of x B) y is not a function of x 8. Determine whether the equation defines y as a function of x. x = y2 A) y is a function of x B) y is not a function of x 9. Evaluate the function at the given value of the independent variable and simplify. f(x) = -3x – 8; f(-2) A) 14 B) -11 C) -2 D) 22 10. Evaluate the function at the given value of the independent variable and simplify. f(x) = x2 – 1; f(x – 2) A) x2 + 4 B) x2 – 4x + 3 C) x2 – 3 D) x2 – 4x + 4 11. Evaluate the function at the given value of the independent variable and simplify. f(x) = 4×2 + 5x – 6; f(x – 1) A) -3×2 + 4x – 7 B) 4×2 – 3x – 7 C) 4×2 – 3x + 3 D) 4×2 – 19x + 3 12. Evaluate the function at the given value of the independent variable and simplify. f(x) = ; f(5) A) B) C) D) 13. Find the slope of the line that goes through the given points. (3, -5), (-9, -8) A) – B) C) D) 4 14. Find the slope of the line that goes through the given points. (-7, 6), (-7, -9) A) Undefined B) C) 0 D) – 15. Find the slope of the line that goes through the given points. (-1, 4), (5, 4) A) B) 0 C) 2 D) Undefined 16. Find the slope of the line that goes through the given points. (-2, -6), (-9, -17) A) B) C) – D) 17. Find the slope of the line that goes through the given points. (-8, 8), (-5, 2) A) B) C) – D) – 2 18. Find the slope of the line that goes through the given points. (-3, -7), (9, -7) A) 0 B) 1 C) -4 D) 4 19. Use the given conditions to write an equation for the line in point-slope form. Slope = 4, passing through (-3, 7) A) y – 7 = 4(x + 3) B) y = 4x + 19 C) x – 7 = 4(y + 3) D) y + 7 = 4(x – 3) 20. Use the given conditions to write an equation for the line in point-slope form. Slope = , passing through (8, 7) A) x – 7 = (y – 8) B) y – 7 = (x – 8) C) y + 7 = (x + 8) D) y = x + 8

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