S4 Equations of Straight Lines 2

Find the equation of the straight line with the slope of -1 passing through A(-2, -5).

• $y=-x+3$

• $y=-x+7$

• $y=-x-3$

• $y=-x-7$

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

• $y=-7x+5$

• $y=5x+12$

• $y=-2x+5$

• $y=-\frac{7}{6}x+\frac{35}{6}$

Tags

CCSS.HSA.CED.A.2

Straight line  $-5x+ky-1=0$  passes through A(1, -2). Find the value of k.

• -3

• -2

• 2

• 3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.3

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.

• $y=-2x-5$

• $y=-2x$

• $y=-2x+7$

• $y=-2x+11$

It is given that the x-intercept and y-intercept of straight line L are 3 and 5 respectively. If L passes through P(k, 10), find the value of k.

• $-\frac{35}{3}$

• $-3$

• $6$

• $\frac{35}{3}$

Find the x-intercept of straight line  $3x-7y+21=0$  .

•  $-7$  

•  $-\frac{3}{7}$  

•  $\frac{7}{3}$  

•  $3$  

Tags

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

The y-intercept of straight line  $3x-6y+5k=0$   is -2. Find the value of k.

•  $\frac{12}{5}$  

•  $\frac{6}{5}$  

•  $-\frac{6}{5}$  

•  $-\frac{12}{5}$  

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

If  $4x+3y-12=0$   cuts the x-axis and y-axis at P and Q respectively, find the perimeter of  $\Delta$ OPQ .

• 6

• 8

• 9

• 12

Straight lines  L1  $4x-3y+5=0$  , L2  $4x+3y-2=0$   and L3  $3x-4y=0$    are given. Which of the following is / are correct?
     I.   L1 // L2
     II.  L1  $\perp$   L2
     III. L2  $\perp$   L3

• I only

• II only

• III only

• None of the above

Find the equation of the straight line which passes through (-4, 5) and is parallel to straight line  $2x-3y-4=0$  .

•  $3x+2y+2=0$  

•  $3x-2y-22=0$  

•  $2x+3y-7=0$ 

•  $2x-3y+23=0$