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Graph this line using the slope and \( y \)-intercept \[ y=-7 x+10 \] Click to select points on the graph.

Ask by Bob Schultz. in the United States
Jan 23,2025

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To graph the line \( y = -7x + 10 \), plot the y-intercept at \( (0, 10) \) and use the slope to find another point, such as \( (1, 3) \). Draw a straight line through these points to complete the graph.

Solución

Sure! Let's graph the line given by the equation: \[ y = -7x + 10 \] This equation is in **slope-intercept form**, which is: \[ y = mx + b \] where: - \( m \) is the **slope** of the line. - \( b \) is the **y-intercept** (the point where the line crosses the y-axis). ### Step 1: Identify the Slope and Y-Intercept From the equation \( y = -7x + 10 \): - **Slope (\( m \))**: \(-7\) - **Y-Intercept (\( b \))**: \(10\) ### Step 2: Plot the Y-Intercept Start by plotting the y-intercept on the graph. - **Point**: \( (0, 10) \) ![Step 2: Y-Intercept](https://i.imgur.com/9lzIUDK.png) ### Step 3: Use the Slope to Find Another Point The slope \( m = -7 \) can be interpreted as: - **Rise**: \(-7\) (down 7 units) - **Run**: \(1\) (right 1 unit) From the y-intercept \( (0, 10) \): 1. **Run 1 unit to the right**: \( x = 0 + 1 = 1 \) 2. **Rise \(-7\) units**: \( y = 10 - 7 = 3 \) - **Second Point**: \( (1, 3) \) ![Step 3: Second Point](https://i.imgur.com/2kHr7hQ.png) ### Step 4: Draw the Line Connect the two points \( (0, 10) \) and \( (1, 3) \) with a straight line. Extend the line in both directions. ![Step 4: Graph of the Line](https://i.imgur.com/NE8c2pn.png) ### Summary of Points to Plot - **Y-Intercept**: \( (0, 10) \) - **Using Slope**: \( (1, 3) \) - **Alternatively**, you can find another point by moving **left** instead: - **Run -1 unit**: \( x = 0 - 1 = -1 \) - **Rise +7 units**: \( y = 10 + 7 = 17 \) - **Another Point**: \( (-1, 17) \) Plot these points and draw the line through them to complete the graph of \( y = -7x + 10 \). If you're using graphing software or an online graphing tool, you can input the equation \( y = -7x + 10 \) directly to visualize the line.

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To graph the line given by the equation \( y = -7x + 10 \), start by identifying the \( y \)-intercept, which is the point where the line crosses the \( y \)-axis. Here, the \( y \)-intercept is \( (0, 10) \). That means you can plot this point on the graph first. Next, use the slope, which is -7, to find another point. The slope of -7 can be interpreted as "down 7 units" for every "right 1 unit." Starting from the \( y \)-intercept, move down 7 units and right 1 unit to reach the point \( (1, 3) \). Plot this point as well. Draw a straight line through these plotted points, and you’ll have your graph!

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