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13. Which of the following graphs represents the solution set for [tex]$5x + 38 \leq 4(2 - 5x)$[/tex]?

A.
B.
C.
D.


Sagot :

To determine which graph represents the solution set for the inequality [tex]\(5x + 38 \leq 4(2 - 5x)\)[/tex], we need to solve the inequality step-by-step.

1. Start with the given inequality:
[tex]\[ 5x + 38 \leq 4(2 - 5x) \][/tex]

2. Distribute the 4 on the right side:
[tex]\[ 4(2 - 5x) = 8 - 20x \][/tex]
So the inequality becomes:
[tex]\[ 5x + 38 \leq 8 - 20x \][/tex]

3. Combine like terms by adding [tex]\(20x\)[/tex] to both sides:
[tex]\[ 5x + 20x + 38 \leq 8 - 20x + 20x \][/tex]
[tex]\[ 25x + 38 \leq 8 \][/tex]

4. Isolate the term with [tex]\(x\)[/tex] on one side by subtracting 38 from both sides:
[tex]\[ 25x + 38 - 38 \leq 8 - 38 \][/tex]
[tex]\[ 25x \leq -30 \][/tex]

5. Solve for [tex]\(x\)[/tex] by dividing both sides by 25:
[tex]\[ x \leq -30 / 25 \][/tex]

6. Simplify the fraction:
[tex]\[ x \leq -6 / 5 \][/tex]
[tex]\[ x \leq -1.2 \][/tex]

Therefore, the solution set for the inequality [tex]\(5x + 38 \leq 4(2 - 5x)\)[/tex] is [tex]\(x \leq -1.2\)[/tex].

The graph that represents this solution set will show a number line with a closed circle at [tex]\(x = -1.2\)[/tex] (indicating that -1.2 is included in the solution set) and shading to the left of -1.2 (indicating all values less than or equal to -1.2 are part of the solution set).

Select the graph that matches the description above.