Math Problem Statement

Graph the line for 4+y=-1/5(x-3)

Solution

To graph the equation 4+y=15(x3)4 + y = -\frac{1}{5}(x - 3), let's first rewrite it in slope-intercept form y=mx+by = mx + b, which is easier to graph.

Step 1: Simplify the equation

Starting with: 4+y=15(x3)4 + y = -\frac{1}{5}(x - 3) Subtract 4 from both sides: y=15(x3)4y = -\frac{1}{5}(x - 3) - 4 Now, distribute 15-\frac{1}{5} to (x3)(x - 3): y=15x+354y = -\frac{1}{5}x + \frac{3}{5} - 4 Now, convert 4 to a fraction: y=15x+35205y = -\frac{1}{5}x + \frac{3}{5} - \frac{20}{5} Combine the constant terms: y=15x175y = -\frac{1}{5}x - \frac{17}{5}

Step 2: Identify the slope and y-intercept

The equation is now in slope-intercept form y=mx+by = mx + b, where:

  • The slope m=15m = -\frac{1}{5}
  • The y-intercept b=175b = -\frac{17}{5}

Step 3: Graph the line

  1. Plot the y-intercept: The y-intercept is 175-\frac{17}{5}, which is equivalent to 3.4-3.4. So, plot the point (0,3.4)(0, -3.4) on the y-axis.
  2. Use the slope: The slope is 15-\frac{1}{5}, which means for every 5 units you move to the right (positive x-direction), you move 1 unit down (negative y-direction). From the point (0,3.4)(0, -3.4), move 5 units to the right and 1 unit down to get to the next point (5,4.4)(5, -4.4).
  3. Draw the line: Connect the points with a straight line.

This is how you graph the line for the equation 4+y=15(x3)4 + y = -\frac{1}{5}(x - 3).

Would you like more details, or would you like me to assist with something else?

Here are a few related questions:

  1. How do you interpret the slope and y-intercept of a linear equation?
  2. What are some other methods to graph a line besides slope-intercept form?
  3. How do you find the equation of a line if you know two points on it?
  4. What happens to the graph of the line if the slope is positive or negative?
  5. How do you determine the x-intercept of a line?

Tip: To make graphing easier, always start with plotting the y-intercept and use the slope to find other points.

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Slope-Intercept Form
Graphing Lines

Formulas

y = mx + b
Point-Slope Form

Theorems

Slope-Intercept Form Theorem

Suitable Grade Level

Grades 8-10