Graphs - JSS2 Mathematics Past Questions and Answers - page 1

Move 4 units left on the x-axis (x = -4), then move 3 units up on the y-axis (y = 3).

Move 2 units right on the x-axis and 5 units down on the y-axis.
It is in the fourth quadrant.

𝑥𝑦−2𝑦=3(−2)−2

y=3(−2)−2=−8

y=3(−1)−2=−5

y=3(0)−2=−2

y=3(1)−2=1

y=3(2)−2=4

Plot each point and draw a line through them.

The graph is a straight line passing through the points (-2, 0), (-1, 1), (0, 2), (1, 3), (2, 4).

The equation is in the form 

𝑦=𝑚𝑥+𝑏, where 

𝑚 is the slope and 

𝑏 is the y-intercept.

Slope 𝑚=4, y-intercept 𝑏=−1.

Equation: 𝑦=2𝑥+5.

y

y=2(0)+5=5

y=2(1)+5=7

y=2(2)+5=9

y=2(3)+5=11

y=2(4)+5=13

y=2(5)+5=15

3𝑥+4≤16

3𝑥≤12

𝑥≤4

Substitute 𝑥=1:

𝑦=2(1)+3

=5

The coordinates are (1, 5).