Plot the graphs

The equation is in the form $y = mx + c$.

• The y-intercept ($c$) is $-2$. This means the line crosses the y-axis at the point $(0, -2)$.
• The gradient ($m$) is 2. This means for every 1 unit increase in $x$, the $y$ value increases by 2 units.

• Start by plotting the y-intercept: $(0, -2)$.
• From this point, use the gradient: move 1 unit to the right (positive x-direction) and 2 units up (positive y-direction). This brings you to the point $(0+1, -2+2) = (1, 0)$.
• Draw a straight line connecting the points $(0, -2)$ and $(1, 0)$. You can extend this line in both directions.

The equation is in the form $y = mx + c$.

• The y-intercept ($c$) is 1. This means the line crosses the y-axis at the point $(0, 1)$.
• The gradient ($m$) is $-2$. This means for every 1 unit increase in $x$, the $y$ value decreases by 2 units.

• Start by plotting the y-intercept: $(0, 1)$.
• From this point, use the gradient: move 1 unit to the right (positive x-direction) and 2 units down (negative y-direction). This brings you to the point $(0+1, 1-2) = (1, -1)$.
• Draw a straight line connecting the points $(0, 1)$ and $(1, -1)$. You can extend this line in both directions.