Form 8: Interpreting Y-Intercept Exercise

Form 8: Interpreting Y-Intercept

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Form 8: Interpreting Y-Intercept

Practice interpreting the y-intercept of a trend line within bivariate data representations.

Questions

  1. MultiChoice

    In the trend line equation y = mx + b, what does the y-intercept (b) represent?

  2. MultiChoice

    In line y = 5x + 60 relating study hours (x) to score (y), y-intercept = 60 means:

  3. MultiChoice

    In y = 1.5x + 4 for plant height (y) after x days, y-intercept = 4 means:

  4. MultiChoice

    In y = -1200x + 25000 for car value (y) after x years, y-intercept = 25000 means:

  5. MultiChoice

    In y = -0.5x + 8 for candle height (y) after x hours, y-intercept = 8 means:

  6. MultiChoice

    In y = 0.25x + 30 for taxi fare (y) and miles (x), what does 30 represent?

  7. MultiChoice

    On a graph, where does the line cross the vertical y-axis?

  8. MultiChoice

    Line equation y = 3x + 15 has y-intercept equal to:

  9. MultiChoice

    If a line of best fit has y-intercept = 0, what does this indicate visually?

  10. MultiChoice

    Is the y-intercept ALWAYS realistic in real-world contexts (e.g. height of adult with weight=0)?

  11. MultiChoice

    For line y = 2x + b passing through (3, 16), what is the y-intercept b?

  12. MultiChoice

    If plumber cost line changes from y = 40x + 50 to y = 40x + 55, what changed?