Form 3 - Chapter 9: Straight lines

Which of the following points lie on the line 7x+5y=2?

• $\left(\frac{2}{7},0\right)$

• $\left(0,\ -3\right)$

• $\left(-2,\ 0\right)$

• $\left(-7,\ 1\right)$

Diagram shows a straight line PQ. State the gradient of the straight line PQ.

• $\frac{5}{8}$

• $\frac{8}{5}$

• $-\frac{5}{8}$

• $-\frac{8}{5}$

Diagram shows a straight line RS. Find the equation of the straight line RS.

• $4y=7x-28$

• $4x+7y=28$

• $7y=4x+28$

• $7x+4y=28$

Given that P(6, 1), Q(-2, 15) and R(4, 10) are three points on a Cartesian Plane. PQ is a straight line. N is midpoint PQ. Find the gradient of NR.

• $1$

• $\frac{1}{2}$

• $-\frac{9}{2}$

• $-\frac{7}{4}$

Which graph shows a straight line with a gradient of

 $-\frac{5}{4}$  ?

• 
• 
• 
• 

Diagram shows , the straight line IH is parallel to the straights line JKL. O is the origin.

i) find the equation of the straight line JKL

Diagram shows a straight line RS. Find the equation of the straight line RS.

• $4y=7x-28$

• $4x+7y=28$

• $7y=4x+28$

• $7x+4y=28$

Diagram shows two parallel lines RS and TV. The equation of the straight line TV is y=-3x+3. Find the equation of the straight line RS.

• $y=-x+9$

• $y=-x+2$

• $y=-3x+2$

• $y=-2x+2$

What is the gradient of this line?

• 2

• ½

• -½

• -3

What is the y-intercept of this line?

• 2
• 3
• -3y
• -3

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7