Math Problem Statement

Graph the line 5x - 2y = -10 using intercepts.

Solution

The equation provided in the image is:

5x2y=105x - 2y = -10

To graph this line using intercepts, we will find the x-intercept and the y-intercept.

Step 1: Find the x-intercept

To find the x-intercept, set y=0y = 0 and solve for xx:

5x2(0)=10    5x=10    x=25x - 2(0) = -10 \implies 5x = -10 \implies x = -2

So, the x-intercept is (2,0)(-2, 0).

Step 2: Find the y-intercept

To find the y-intercept, set x=0x = 0 and solve for yy:

5(0)2y=10    2y=10    y=55(0) - 2y = -10 \implies -2y = -10 \implies y = 5

So, the y-intercept is (0,5)(0, 5).

Step 3: Plot the intercepts and draw the line

  • Plot the point (2,0)(-2, 0) on the x-axis.
  • Plot the point (0,5)(0, 5) on the y-axis.
  • Draw a straight line through these two points to graph the equation.

Would you like a detailed drawing of the graph? Also, here are some questions to extend your understanding:

  1. What happens if we multiply both sides of the equation by a constant?
  2. How do you determine the slope from the equation 5x2y=105x - 2y = -10?
  3. What is the slope of the line from the two intercepts?
  4. Can you write this equation in slope-intercept form?
  5. How would you graph the line if given only the slope and a point?

Tip: Always check for both intercepts (x and y) to quickly graph a linear equation!

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Math Problem Analysis

Mathematical Concepts

Linear Equations
Graphing using intercepts

Formulas

x-intercept: Set y = 0 and solve for x
y-intercept: Set x = 0 and solve for y
General form of a linear equation: Ax + By = C

Theorems

Intercepts of linear equations

Suitable Grade Level

Grades 8-10