1.2a Straight lines

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

• $-2$

• $-\frac{1}{2}$

• $\frac{1}{2}$

• $2$

Find the equation of the straight line MN if its gradient is equal to 3 and the line passes through point 
 $\left(-2,5\right)$ .

• $y=2x+5$

• $y=-3x+11$

• $y=3x-11$

• $y=3x+11$

Determine the equation of straight line with a gradient of 2 and passes through point  $A\left(2,-3\right)$  

•  $y=2x+7$  

•  $y=2x-7$  

•  $y=2x+1$  

•  $y=2x-1$  

Given that straight line AB passes through point  $C\left(3,\ 8\right)$  and  $D\left(2,\ -2\right)$ . What is straight line AB?

•  $y=10x-22$  

•  $y=10x+22$  

•  $y=6x-10$  

•  $y=6x+10$  

Two points A(-2, 4) and B(-6, 2) are given. P is the mid-point of line segment AB. Find the equation of the straight line with the slope of -2 passing through P.

• $y=-2x-5$

• $y=-2x$

• $y=-2x+7$

• $y=-2x+11$

Two points A(-1, -4) and B(3, -6) are given. The equation of the perpendicular bisector of AB is

• $y=-2x-3$ .

• $y=2x-7$ .

• $y=-\frac{1}{2}x-\frac{9}{2}$ .

• $y=\frac{1}{2}x-\frac{11}{2}$ .

The equation of a straight line is 2x +5y =7. Find the gradient of the line

• -2

• -5/2

• -2/5

• 5

The equation of a straight line is

3x - 2y + 8 = 0. Find the y -intercept of the line

• -8

• 4

• -8/3

• 8/3

What is the midpoint of the points (-1, 9) and (-6, -7)

• (-3, 1)

• (-3.5, 1)

• (-4, 1)

• (-4, 0)

What is the midpoint for the coordinates (-2, 2) and (3, 0)?

• ( .5, 1)

• ( .5, 1 )

• (1, .5)

• (1, 1)