Which ordered pairs represent points on the graph of this equation? Select all that apply.

y = - 3/4 x - 1/2

1 answer

To determine which ordered pairs represent points on the graph of the equation \( y = -\frac{3}{4}x - \frac{1}{2} \), you can substitute the x-values of the ordered pairs into the equation to see if the resulting \( y \)-value matches the one given in the ordered pair.

Let's break down the equation \( y = -\frac{3}{4}x - \frac{1}{2} \):

  1. Pick an ordered pair and substitute \( x \) into the equation.
  2. Calculate \( y \) using the equation.
  3. Check if the calculated \( y \) from the equation matches the given \( y \) in the ordered pair.

Since you did not provide specific ordered pairs, I will demonstrate using a few examples:

  1. (0, -0.5): \[ y = -\frac{3}{4}(0) - \frac{1}{2} = -\frac{1}{2} \] This ordered pair is valid.

  2. (4, -3): \[ y = -\frac{3}{4}(4) - \frac{1}{2} = -3 - \frac{1}{2} = -3.5 \] This does not match.

  3. (-4, 2): \[ y = -\frac{3}{4}(-4) - \frac{1}{2} = 3 - \frac{1}{2} = 2.5 \] This does not match.

  4. (2, -2): \[ y = -\frac{3}{4}(2) - \frac{1}{2} = -\frac{3}{2} - \frac{1}{2} = -2 \] This pair is valid.

You can provide your own set of ordered pairs if they are specific, and I can help you determine which of them lie on the line represented by the equation.