Chapter 4: Linear Equations in Two Variables

Questions

1. Two solutions of $2x + y = 7$.
2. Find $k$ if $(2, -3)$ satisfies $3x + ky = 3$.
3. $x$-intercept of $3x - 4y = 12$.
4. Draw $x + y = 4$; give two points.
5. Find a solution of $x - 2y = 4$.
6. Slope of $y = 2x + 5$.
7. Line parallel to $x$-axis at $y = -3$: equation?
8. Taxi fare $= 20 + 5x$: total after $8$ km?
9. Write $2x - 5y = 10$ in intercept form.
10. Is $(1, 1)$ on $2x + 3y = 5$?

Extra Practice (Optional)

• Give three solutions of $y = 2x + 1$.
• Find $c$ if $(1, 3)$ lies on $y = 2x + c$.
• Slope of the line joining $(2, 3)$ and $(4, 7)$.
• Graph $3x + 2y = 6$.
• Distance travelled at $50$ km/h in $t$ hours as an equation.