Math Problem Statement

y≥−x−5 y, is greater than or eqy≥−x−5 y, is greater than or equal to, start fraction, 3, divided by, 5, end fraction, x, plus, 3 y≥ 5 3 ​ x+3 ual to, start fraction, 3, divided by, 5, end fraction, x, plus, 3 y≥ 5 3 ​ x+3

Solution

It seems like you're working with two inequalities for yy:

  1. yx5y \geq -x - 5
  2. y35x+3y \geq \frac{3}{5}x + 3

To solve or visualize these inequalities, we can treat them as lines and then shade the region that satisfies both conditions.

Step 1: Graphing the Inequalities

Let's break down the lines these inequalities represent:

  • The first inequality yx5y \geq -x - 5 corresponds to the line y=x5y = -x - 5, which has a slope of 1-1 and a y-intercept of 5-5.
  • The second inequality y35x+3y \geq \frac{3}{5}x + 3 corresponds to the line y=35x+3y = \frac{3}{5}x + 3, which has a slope of 35\frac{3}{5} and a y-intercept of 33.

Step 2: Finding the Intersection Point

To find where these two lines intersect, we set the equations equal to each other:

x5=35x+3-x - 5 = \frac{3}{5}x + 3

Multiplying through by 5 to eliminate the fraction:

5x25=3x+15-5x - 25 = 3x + 15

Now, solve for xx:

5x3x=15+25-5x - 3x = 15 + 25 8x=40-8x = 40 x=5x = -5

Now, substitute x=5x = -5 back into either equation to find yy:

Using y=x5y = -x - 5:

y=(5)5=55=0y = -(-5) - 5 = 5 - 5 = 0

So the two lines intersect at the point (5,0)(-5, 0).

Step 3: Shading the Region

  • For yx5y \geq -x - 5, shade the region above the line y=x5y = -x - 5.
  • For y35x+3y \geq \frac{3}{5}x + 3, shade the region above the line y=35x+3y = \frac{3}{5}x + 3.

The solution to the system of inequalities will be the region above both lines, including the lines themselves.


Do you want more details on graphing or solving inequalities?

Here are 5 related questions you might find useful:

  1. How do you graph linear inequalities by hand?
  2. What happens when you have a system of inequalities with a different number of variables?
  3. How do you interpret the meaning of yx5y \geq -x - 5 geometrically?
  4. How do you check whether a point satisfies a system of inequalities?
  5. What if we had a system involving strict inequalities (like y>x5y > -x - 5)?

Tip: To graph inequalities with slopes, remember that the line itself represents the equality, and the shading indicates where the inequality holds.

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Math Problem Analysis

Mathematical Concepts

Linear Inequalities
Graphing
Intersection of Lines

Formulas

y = -x - 5
y = 3/5x + 3

Theorems

Intersection of lines

Suitable Grade Level

Grades 8-10