Y10M Linear redemption task

Solve:

3x - y = 11

x + y = 5

• x = 4

  y = 1

• x = 4

  y = -1

• x = -4

  y = 1

• x = -4

  y = -1

Solve:

2x + 3y = 5

x + 3y = 7

• x = -2

  y = 3

• x = -2

  y = -3

• x = 2

  y = 3

• x = 2

  y = -3

Christian had brochures printed for a new business venture. Christian originally ordered 4 boxes of black-and-white brochures and 3 boxes of colour brochures, which cost a total of $134. After those ran out, Christian spent $120 on 3 boxes of black-and-white brochures and 3 boxes of colour brochures. Which simultaneous equations represent this situation?

• x+y=134

  x+y=120

• 3x+3y=134

  4x+3y=120

• 4x+3y=134

  3x+3y=120

• 7xy=134

  6xy=120

Answer explanation

The correct choice is y<-1 because when we solve the inequality -2y+4>6, we subtract 4 from both sides and divide by -2, resulting in y<-1.

Which linear inequality matches the graph?

• y <= x - 2

• y < x - 2

• y > x - 2

• y < -x - 2

• 42

• 7

• 58

• 6

Which graph shows the equation y=x-3?

• 
• 
• 
• 

What equation has been graphed?

• y=3x-3

• y=1-5x

• y=5x+1

• y=3x+1

Solve the equation:

 $-3x+6=15$  

•  $x=-27$  

•  $x=-7$  

•  $x=3$  

•  $x=-3$  

Which of the following pairs of points lies on a
line with a slope of

 $-\frac{3}{5}$  

• (4, 0), (−2, 10)

• (4, 2), (10, 4)

• (−4, −10), (0, −2)

• (10, −2), (0, 4)