Straightlines grade 11

A horizontal line cuts the Y axis at -3, the equation of the line is

• x = -3
• y = -3
• y = x - 3

Given that the equation of a straight line is 4x + 6y – 3 = 0. What is the gradient of the line?

• 2/3
• -2/3
• 4
• 6

P is the point (−2,3) and Q is the point (4,15). Find the slope of the straight line PQ.

Two lines with slopes m1 and m2 is said to be perpendicular if

• m1=m2

• m1.m2=1

• m2.m1=-1

• none of these

Find the equation of the straight line with slope 2 passing through (-3, 4) .

• -15

• -3

• 3

• 15

• I only

• II only

• I and III only

• None of the above

What is the y-intercept of the line
y = 4x - 6?

• 4
• 4x
• 6
• -6

Find the equation of the straight line with the y-intercept of 5 passing through A(-1, 7).

• I only

• II only

• I and III only

• II and III only