Question

Please help asap its an assignment.

Answer 1

1. Negative slope

2. Positive slope

3. No slope

4- Zero

Explanation:

`\sf \boxed{\bf slope = (y_2-y_1)/(x_2-x_1)}`

`\sf 1) (7 - 9 )/(4-2)=(-2)/(2)\\`

= -1

`\sf 2) (4-2)/(4-1)=(2)/(3)`

3) (1,1) and (1 , 4)

Here x coordinates of the two points are same. So, the line is parallel to y-axis.

Slope of the line parallel to y-axis is undefined. So, no slope.

4) (9,7) &(6 ,7)

Here y coordinates of the two points are same. So, the line is parallel to x-axis.

Slope of the line parallel to x-axis is zero.