x ≤ 4 x = 4 x = 4 Describe the unshaded region. In the unshaded region is x greater than or less than 4? The region is x less than or equals to 4. x ≤ 4 less than First, work out the equation of the line. But as it’s a solid line, it also includes 4 x = 4
In the unshaded region is y greater than or less than 2? Describe the unshaded region. The region is y greater than 2. y > 2 greater than y = 2 and it’s a dotted line, so it does not include 2 First, work out the equation of the line. y = 2
Bingo Choose 9 of the following y > 3 y < 5 y ≤ 2 y ≥ -2 x < -5 x ≤ -5 y ≥ 6 y > 0 x < 4 x ≤ 2 y <3 y > -1 x >-6 x ≤ 1 x ≥ -2
Describe the unshaded region. y –2 y = -2
Describe the unshaded region. y 3 Describe the unshaded region. y = 3
Describe the unshaded region. y 0 y = 0
Describe the unshaded region. y = 1 y 1
Describe the unshaded region. y -1
Describe the unshaded region. x = -5 Describe the unshaded region. x < –5
Describe the unshaded region. x = 4 Describe the unshaded region. x < 4
Describe the unshaded region. y = 3 y 3
Describe the unshaded region. y = 3 y = 3 y > –1 and y < 3 y < 3
Describe the unshaded region. x = -1 Describe the unshaded region. x –1
Describe the unshaded region. x 2
Describe the unshaded region. x = -6 Describe the unshaded region. x > -6
Describe the unshaded region. y = 3 y < 3
Describe the unshaded region. x 1
Describe the unshaded region. x = -2 Describe the unshaded region. x –2
Describe the unshaded region. Next steps
x + y 6 x + y = 6 Describe the unshaded region. But is this region, less than or greater than? What’s this line called? (3,1) x + y 6 x + y = 6 3 + 1 6 x + y = 6 x + y = 6
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x (0,6) (1,5) (6,6) x + y = 6 y = -x y = x (2,4) (5,5) (3,3) (4,4) (3,3) (4,2) (2,2) (5,1) (1,1) (6,0) (-1,-1)
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x x + y = 7 x + y = 3 x = 6 y = 3 y = x
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = x - y = 3x - 2 3 1
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = x + y = 2x + 3 2 1
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = x - y = 2x - 6 2 1
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = x + y = -x + 2 1 -1
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = -2x - 3 y = x - 1 -2
Objective: To know the equations of simple straight lines. 2 4 6 8 -2 -4 -6 y x y = x + y = 3x 3 1
Loop cards (START) I am y=______ You have a line with gradient 4 and intercept at y=3 I am y=_____ You have a line with gradient 1 and intercept at y=1 You have a line with gradient 1 and intercept at y=4 I am y = ______ You have a line with gradient 2 and intercept at y=0 I am y=______ You have a line with gradient 5 and intercept 5 You have a line with gradient -2 and intercept at y=1 You have a line with gradient -1 and intercept at y=0 You have a line with gradient -2 and intercept at y=0 You have a line with gradient ½ and intercept at y=0 You have a line with gradient 1/3 and intercept at y=1 You have a line with gradient -2/3 and y intercept at 2 You have a line with gradient 1 and intercept at y=2 (START) I am y=______ You have a line with gradient 4 and intercept at y=3 I am y=_____ You have a line with gradient 1 and intercept at y=1 You have a line with gradient 1 and intercept at y=4 I am y = ______ You have a line with gradient 2 and intercept at y=0 I am y=______ You have a line with gradient 5 and intercept 5 You have a line with gradient -2 and intercept at y=1 You have a line with gradient -1 and intercept at y=0 You have a line with gradient -2 and intercept at y=0 You have a line with gradient ½ and intercept at y=0 You have a line with gradient 1/3 and intercept at y=1 You have a line with gradient -2/3 and y intercept at 2 You have a line with gradient 1 and intercept at y=2
y x – 2 and y < 4 and x > 0 Describe the unshaded region. y = 4 y x – 2 and y < 4 and x > 0 y = x - 2