Question

19. Line g has a zero slope. If Line k contains the point (-1,-9) and is parallel to Line g, what must be the y-coordinates of the other points that lie on the line?

A. -9
B. 1
C. -1
D. 1/9​

Answer 1

• A. -9

Explanation:

Slope-intercept form:

• y = mx + b

If m = 0, then:

• y = b

Parallel lines have same slope, so line k has similar formula. Having point (-1, -9) on this line, its equation will be:

• y = -9

So for any x-coordinate, this line has one value: -9 as y-coordinate

Correct answer option: A. -9