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Virginia SOL Algebra I functions quiz (A.F) quiz

12questions. Pick an answer and you'll see why right away.

  1. For f(x)=3x2−2x+1f(x) = 3x^2 - 2x + 1, find f(−2)f(-2).

  2. Which relation is a function?

  3. What is the domain of {(−2,3),(0,5),(1,5),(4,9)}\{(-2, 3), (0, 5), (1, 5), (4, 9)\}?

  4. The number of students in a class is which kind of quantity?

  5. Find the slope of the line through (1,4)(1, 4) and (5,16)(5, 16).

  6. A phone plan costs C=0.10t+25C = 0.10t + 25 for tt minutes. What does the slope 0.100.10 represent?

  7. Write the slope-intercept equation of the line with slope 44 through (0,−3)(0, -3).

  8. What is the slope of a line perpendicular to y=12x+6y = \dfrac{1}{2}x + 6?

  9. The function f(x)=x2−4f(x) = x^2 - 4 has which zeros?

  10. What is the y-intercept of f(x)=2x2+3x−5f(x) = 2x^2 + 3x - 5?

  11. Find the axis of symmetry of f(x)=x2−6x+5f(x) = x^2 - 6x + 5.

  12. For f(x)=−2x2+4x+1f(x) = -2x^2 + 4x + 1, which way does the parabola open and what is at the vertex?