Question

1. find the slope of the line who's inclinations are -90°.
2. the points A(-2,2) , B(0,3) , C(4,5) are collinear or not?
3.Find the distance between points P(-3,4) and Q(4,4).
4. find the midpoint of (4,7) and (3,2).
5. slope of a line parallel to y-axis is ?
6. find the slope of the lines whose inclinations are minus -60°.
7. if the angle made by the line with the positive direction of x-axis is 30° what is the slope of line.
8. Find the distance between the points T(-4,2) and R(4,-4).
9. find the slopes of the lines whose inclinations are +30°.​

Answer 1

Answer:

Step-by-step explanation:

1. tanθ is called the slope (or gradient) of a line. The slope of a line is usually denoted by m.

 it is given that θ= -90°

the slope of the line is: tan 90° = 0

Answer 2

Answer:

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