Questions: Draw the graph of each of the 3 equations below.

Draw the graph of each of the 3 equations below.
Transcript text: Draw the graph of each of the 3 equations below.
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Solution

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Solution Steps

Step 1: Rewrite the Equation in Slope-Intercept Form

The given equation is: \[ -x - 2y = -4 \]

To rewrite it in slope-intercept form (\(y = mx + b\)), solve for \(y\): \[ -2y = x - 4 \] \[ y = -\frac{1}{2}x + 2 \]

Step 2: Identify the Slope and Y-Intercept

From the equation \( y = -\frac{1}{2}x + 2 \):

  • The slope (\(m\)) is \(-\frac{1}{2}\).
  • The y-intercept (\(b\)) is \(2\).
Step 3: Plot the Y-Intercept

Plot the y-intercept (0, 2) on the graph.

Step 4: Use the Slope to Find Another Point

From the y-intercept, use the slope \(-\frac{1}{2}\) to find another point. The slope means that for every 1 unit increase in \(x\), \(y\) decreases by \(\frac{1}{2}\):

  • Starting from (0, 2), move 1 unit to the right (x = 1) and \(\frac{1}{2}\) unit down (y = 1.5). This gives the point (1, 1.5).
Step 5: Draw the Line

Draw a straight line through the points (0, 2) and (1, 1.5).

Final Answer

The graph of the equation \( -x - 2y = -4 \) is a straight line passing through the points (0, 2) and (1, 1.5).

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