Question: Graph the equation and identify the x and y-intercepts.
−2y = x − 4
Part 1 of 2
Graph −2y = x − 4.
1. **State the problem:** We need to graph the equation $$-2y = x - 4$$ and identify the x- and y-intercepts.
2. **Rewrite the equation in slope-intercept form:** Solve for $$y$$.
$$-2y = x - 4$$
Divide both sides by $$-2$$:
$$y = \frac{x - 4}{-2} = \frac{\cancel{x} - 4}{\cancel{-2}} = -\frac{1}{2}x + 2$$
3. **Identify the slope and y-intercept:**
The equation is now $$y = -\frac{1}{2}x + 2$$.
- Slope $$m = -\frac{1}{2}$$ (negative slope)
- Y-intercept $$b = 2$$ (point $$(0,2)$$)
4. **Find the x-intercept:** Set $$y=0$$ and solve for $$x$$.
$$0 = -\frac{1}{2}x + 2$$
Add $$\frac{1}{2}x$$ to both sides:
$$\frac{1}{2}x = 2$$
Multiply both sides by 2:
$$x = 4$$
So the x-intercept is $$(4,0)$$.
5. **Summary:**
- Y-intercept at $$(0,2)$$
- X-intercept at $$(4,0)$$
- The graph is a straight line with slope $$-\frac{1}{2}$$, crossing the y-axis at 2 and the x-axis at 4.
6. **Graph shape:** The line slopes downward from left to right, crossing the y-axis at 2 and x-axis at 4, positioned across the center/lower-center of the graph area as described.