Is (0, −5) on the line created by y=x−5? How do you know?

Yes, because when you substitute 0 for x and −5 for y, the equation is true.

Yes, because when you substitute −5 for x and 0 for y, the equation is true.

No, because when you substitute −5 for x and 0 for y, the equation is NOT true.

No, because when you substitute 0 for x and −5 for y, the equation is NOT true.

1 answer

To determine if the point (0, -5) is on the line given by the equation \( y = x - 5 \), we need to substitute the x-coordinate and y-coordinate of the point into the equation.

Given the point \((0, -5)\):

  • Here, \( x = 0 \) and \( y = -5 \).

Substituting \( x = 0 \) into the equation: \[ y = 0 - 5 = -5 \]

Since the calculated \( y \) value (-5) matches the y-coordinate of the point (-5), the point (0, -5) is indeed on the line.

So, the correct answer is:

Yes, because when you substitute 0 for x and −5 for y, the equation is true.