Straight lines

If L1 and L2 are perpendicular lines, then which of the following is correct?

• m2=1/m1

• m2=-1/m1

• m1=-1/m2

• m1=1/m2

What is the slope of a line whose inclination is 150 degree?

• -1/√3

• 1/√3

• √3

• -√3

The inclination of a line is 480 degrees. Find its slope.

• √3

• 1/√3

• -√3

• -1/√3

Find the equation of a line passing through the point(-1,0) and slope -1/2.

Find the equation of a line passing through the points (2,4) and (3,7).

Define angle of inclination.

• the tangent of the angle formed between the line and the positive x-axis.

• the angle formed by the positive x-axis and a given line.

• the angle formed by the y-axis and a given line.

• None of these

Write the equation of the line whose slope is 1/2 and the y-intercept is -3/2.

• x-2y-3=0

• x-2y+3=0

• x+2y-3=0

• x-3y-2=0

The Intercept Form of Equation of a Line is of the Form

• x/a+ y/b=1

• y/a+ x/b=1

• x/b+ y/a=1

• none of these

The perpendicular from the origin to a line meets it at the point (9,-2).Find the equation of the line.

• y-9=2/9 (x+2)

• 2-y=-9/2 (x-9)

• y+2=9/2 (x-9)

What is the equation of y-axis?

• x=4

• x=0

• x=-1

• y=0