Question
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Lines \( \leftarrow \quad \begin{array}{l}\text { Give the slope and the } y \text {-intercept of the line with the given equation. Then, graph } \\ \text { the linear equation. } 1 \text { of } 3\end{array} \) \( y=4 x+5 \)

Ask by Lambert Bowers. in the United States
Mar 10,2025

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Tutor-Verified Answer

Answer

The line has a slope of 4 and a \(y\)-intercept at (0, 5). To graph it, start at (0, 5) and move up 4 units and right 1 unit to plot another point, then draw a straight line through these points.

Solution

1. The line is given in slope-intercept form: \[ y = 4x + 5 \] 2. In the equation \(\displaystyle y = mx + b\), the slope is given by \(\displaystyle m\) and the \(y\)-intercept by \(\displaystyle b\). 3. From the equation, the slope is \[ m = 4 \] and the \(y\)-intercept is \[ b = 5\quad \text{or the point } (0, 5). \] 4. To graph the line: - Start at the \(y\)-intercept, \((0, 5)\). - Since the slope is \(4\), which means \(\frac{4}{1}\), rise \(4\) units and run \(1\) unit to the right. This brings you to the point \((1, 9)\). - Continue using the slope to plot additional points if needed or draw a straight line through the points. 5. The final result: - **Slope:** \(\displaystyle 4\) - **\(y\)-intercept:** \(\displaystyle (0, 5)\) Graph these points on the Cartesian plane and draw a line through them to represent the equation.

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Bonus Knowledge

The slope of the line given by the equation \( y = 4x + 5 \) is 4, which means that for every unit increase in \( x \), \( y \) increases by 4 units. The y-intercept is 5, indicating that the line crosses the y-axis at the point (0, 5). To graph this equation, start at the y-intercept (0, 5) on the graph. From there, use the slope to rise 4 units and run 1 unit to the right to find another point on the line at (1, 9). Connecting these points will give you a straight line that extends in both directions, typically shown with arrows at the ends.

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