Algebra 1 (Reiny or Kuai)

posted by .

Can a linear equation represent a function if the straight line does not cross any lines of the graph?

  • Algebra 1 (Reiny or Kuai) -

    not sure what you mean by "any lines of the graph", are you talking about the x or y axes ?

    if a line is horizontal, then it must cross the y-axis
    and all horizontal lines are functions

    if a line is vertical, then it must cross the x-axis, it is NOT a function

    any other straight line must cross both the x and the y axes, and it would be a function

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra 1 (Reiny or Kuai)

    1. Determine a relationship between x- and y-values. Write an equation. {(1, -1), ( 2, -2), (3, -3), (4, -4) A: x = -y?
  2. Algebra 1 (Reiny or Kuai)

    1. Graph each equation. Tell whether the equation represents a function. a. y = (x - 2)^2 - 1 b. x + y = 6 c. y = |x| -3 d. y = x^2 + 1 How am I supposed to graph these?
  3. Algebra 1 (Reiny or Kuai)

    Is the linear equation 3x - 2 = y in standard form?
  4. Algebra 1 (Reiny or Kuai)

    Is the linear equation 3x - 2 = y in standard form?
  5. Algebra 1 (Reiny or Kuai)

    Write each equation in standard form and give the values of A, B, C. Then describe the graph. 1. x + 3/ 5 = y
  6. Algebra 1 (Reiny or Kuai)

    Solve each equation. 1. p(1 + 4) - 2(p + 6) = 6 A: p = -2?
  7. Algebra 1 (Reiny or Kuai)

    Graph each function. 1. y = x^2 + 5 Which numbers should I choose as the x-values?
  8. Algebra 1 (Reiny or Kuai)

    1. Show that ABCD is a trapezoid. (A: (-2, 5); B: (4, 5); C: (6,2); D: (2, -1)). 2. Write an equation in slope-intercept form for the line that passes through (5,0) and is perpendicular to the line given by y = -5/2x + 6.
  9. Algebra 1 (Reiny or Kuai)

    1. Show that ABCD is a trapezoid. (A: (-2, 5); B: (4, 5); C: (6,2); D: (2, -1)). 2. Write an equation in slope-intercept form for the line that passes through (5,0) and is perpendicular to the line given by y = -5/2x + 6.
  10. Algebra 1 (Reiny or Kuai)

    Can a solution of a linear inequality lie on a dashed boundary line?

More Similar Questions