Math Problem Statement

Complete the ordered pairs. Then graph the equation by plotting the points and drawing a line through them.

y = -x - 5

(0, ), ( , 0), (2, )

Solution

Let's first complete the ordered pairs using the equation y=x5y = -x - 5.

  1. For (0, __): Substitute x=0x = 0 into the equation to find yy: y=05=5y = -0 - 5 = -5 So, the ordered pair is (0,5)(0, -5).

  2. For (__, 0): Substitute y=0y = 0 into the equation to find xx: 0=x5    x=50 = -x - 5 \implies x = -5 So, the ordered pair is (5,0)(-5, 0).

  3. For (2, __): Substitute x=2x = 2 into the equation to find yy: y=25=7y = -2 - 5 = -7 So, the ordered pair is (2,7)(2, -7).

Final Ordered Pairs:

  • (0,5)(0, -5)
  • (5,0)(-5, 0)
  • (2,7)(2, -7)

Graphing the Equation:

  1. Plot the points (0,5)(0, -5), (5,0)(-5, 0), and (2,7)(2, -7) on a coordinate plane.
  2. Draw a straight line through the points to represent the equation y=x5y = -x - 5.

Would you like me to graph the equation for you?


Here are some follow-up questions based on this problem:

  1. What is the slope of the line represented by the equation y=x5y = -x - 5?
  2. How would the graph change if the equation were y=x+5y = -x + 5?
  3. What are the intercepts of the line in the original equation?
  4. How would you find the ordered pairs for x=3x = -3 and x=4x = 4?
  5. How can you verify that a point lies on the line defined by y=x5y = -x - 5?

Tip: The slope of a line is key in understanding its steepness and direction. Here, the slope is 1-1, meaning the line falls as you move from left to right.

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Graphing

Formulas

y = -x - 5
Slope-intercept form: y = mx + b

Theorems

Slope-Intercept Theorem

Suitable Grade Level

Grades 8-10