QUIZ 1: CUM21022

Which are following straight line has positive value for the gradient or called positive slope?

[Manakah antara garis lurus yang berikut mempunyai nilai kecerunan positif atau dikenali sebagai cerun positif?]

• 
• 
• 
• 

Find the distance between A (-5, -2) and B (1, 6).
[Cari jarak di antara dua titik A (-5, -2) dan B (1, 6).

•  $\sqrt{\left(1+\left(-5\right)\right)^2-\left(6+\left(-2\right)\right)^2}$  

•  $\sqrt{\left(1-\left(-5\right)\right)^2+\left(6-\left(-2\right)\right)^2}$  

•  $\sqrt{\left(1+\left(-5\right)\right)^2+\left(6+\left(-2\right)\right)^2}$  

•  $\sqrt{\left(1-\left(-5\right)\right)^2-\left(6-\left(-2\right)\right)^2}$  

Evaluate the midpoint between two points from the given figure above.

[Kirakan titik tengah diantara dua titik dari rajah yang diberikan diatas.]

•  $\left(6,-4\right)$  
  

•  $\left(-6,\ 4\right)$  
  

•  $\left(3,-2\right)$  
  

•  $\left(-3,\ 2\right)$  
  

Find the gradient of a straight line from Lofa's house and market .

[Cari kecerunan garis lurus dari rumah Lofa dan pasar.]

• $m=\frac{-3+6}{-6+3}$

• $m=\frac{-3-6}{-6-3}$

• $m=\frac{3-6}{6-3}$

• $m=\frac{3+6}{6+3}$

Given the equation of a straight line is y – 7x = 10. Change the equation in a form y = mx + c.

[Diberi persamaan garis lurus ialah y – 7x = 10. Tukarkan persamaan tersebut dalam bentuk y = mx + c.]

• y = 10 – 7x

• y = – 7x + 10

• y = – 7x – 10

• y = 7x + 10

Given that the equation of straight line is 2x + y = 7, determine the value of gradient.

[Diberi persamaan garis lurus ialah 2x + y = 7, nyatakan nilai bagi kecerunan.]

• -2

• 2

• 7

• -7

Determine the value of y-intercept from the following straight line equation.
[Nyatakan nilai bagi pintasan-y dari persamaan garis lurus berikut:]

                         $2y=4x-8$  

• -8

• 8

• -4

• 4

Find the equation of the straight line , if given the gradient,m = -3 and the y-intercept, c = -3.

[Cari persamaan garis lurus , jika diberi kecerunan,m = -3 dan pintasan-y = -3.]

• $y=-3x-3$

• $y=3x+3$

• $y=-3x+3$

• $y=3x-3$

Given that the gradient , m = 5 and a point A (0, 2). Find the equation of a straight line.

[Diberi bahawa kecerunan, m = 5 dan titik A (0, 2). Cari persamaan garis lurus.]

• $y=2x-5$

• $y=2x+5$

• $y=5x+2$

• $y=5x-2$

Find the equation of the straight line passes through points P (-3, 11) and Q (1, 3).
[Cari persamaan garis lurus yang melalui titik P (-3, 11) dan Q (1, 3). ]

Hint:
 $\frac{y-y_1}{x-x_1}=\frac{y_2-y_1}{x_2-x_1}$  

•  $\frac{y-11}{x-\left(-3\right)}=\frac{3-11}{1-\left(-3\right)}$  

•  $\frac{y+11}{x+3}=\frac{3+11}{1+3}$  

•  $\frac{y-3}{x-11}=\frac{11-3}{3-1}$  

•  $\frac{y+\left(-11\right)}{x+\left(-3\right)}=\frac{3+\left(-11\right)}{1-\left(-3\right)}$