1. **State the problem:** Find the coordinates of points A and B where the line $2x + 3y - 6 = 0$ intersects the x-axis and y-axis respectively, and then find the area of triangle $OAB$ where $O$ is the origin.
2. **Find coordinates of A (x-intercept):** On the x-axis, $y=0$. Substitute $y=0$ into the line equation:
$$2x + 3(0) - 6 = 0 \implies 2x - 6 = 0$$
Solve for $x$:
$$2x = 6$$
$$x = \frac{6}{2}$$
Show cancellation:
$$x = \frac{\cancel{6}}{\cancel{2}} = 3$$
So, $A = (3,0)$.
3. **Find coordinates of B (y-intercept):** On the y-axis, $x=0$. Substitute $x=0$ into the line equation:
$$2(0) + 3y - 6 = 0 \implies 3y - 6 = 0$$
Solve for $y$:
$$3y = 6$$
$$y = \frac{6}{3}$$
Show cancellation:
$$y = \frac{\cancel{6}}{\cancel{3}} = 2$$
So, $B = (0,2)$.
4. **Find area of triangle $OAB$:** The triangle is formed by points $O(0,0)$, $A(3,0)$, and $B(0,2)$. The area of a triangle with vertices on axes is:
$$\text{Area} = \frac{1}{2} \times \text{base} \times \text{height}$$
Here, base = length $OA = 3$, height = length $OB = 2$.
Calculate area:
$$\text{Area} = \frac{1}{2} \times 3 \times 2 = 3$$
**Final answer:** The coordinates are $A(3,0)$ and $B(0,2)$, and the area of triangle $OAB$ is $3$ square units.
Line Intercepts Area 3Ed3Eb
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