Straight Line Maths - Straight Line

• A
  x = 2
• B
  y = 3
• C
  y = x + 2
• ✓
  2x – y = 0

Answer: D.

• A
  $\frac{\sqrt{2}}{\sqrt{5}}$
  
• B
  $\frac{1}{\sqrt{5}}$
  
• C
  $\frac{\sqrt{5}}{2}$
  
• ✓
  $\frac{2}{\sqrt{5}}$
  

Answer: D.

• ✓
  -3
• B
  $-\frac{1}{3}$
• C
  $\frac{1}{3}$
• D
  3

Answer: A.

• A
  15°
• ✓
  30°
• C
  45°
• D
  60°

Answer: B.

• A
  $\frac{1}{3}$
  
• B
  $\frac{2}{3}$
  
• C
  1
• ✓
  $\frac{4}{3}$
  

Answer: D.