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Which point is a solution to [tex]y \leq 4x + 5[/tex]?

A. [tex](-6,4)[/tex]
B. [tex](0,10)[/tex]
C. [tex](0,-2)[/tex]
D. [tex](-4,0)[/tex]


Sagot :

To determine which point satisfies the inequality [tex]\( y \leq 4x + 5 \)[/tex], we need to test each point individually by substituting the [tex]\(x\)[/tex] and [tex]\(y\)[/tex] values into the inequality.

Let's evaluate each point:

A. For the point [tex]\((-6, 4)\)[/tex]:
- Substitute [tex]\(x = -6\)[/tex] and [tex]\(y = 4\)[/tex] into the inequality:
[tex]\[ 4 \leq 4(-6) + 5 \][/tex]
[tex]\[ 4 \leq -24 + 5 \][/tex]
[tex]\[ 4 \leq -19 \][/tex]
- This is not true; hence, [tex]\((-6, 4)\)[/tex] does not satisfy the inequality.

B. For the point [tex]\((0, 10)\)[/tex]:
- Substitute [tex]\(x = 0\)[/tex] and [tex]\(y = 10\)[/tex] into the inequality:
[tex]\[ 10 \leq 4(0) + 5 \][/tex]
[tex]\[ 10 \leq 0 + 5 \][/tex]
[tex]\[ 10 \leq 5 \][/tex]
- This is not true; hence, [tex]\((0, 10)\)[/tex] does not satisfy the inequality.

C. For the point [tex]\((0, -2)\)[/tex]:
- Substitute [tex]\(x = 0\)[/tex] and [tex]\(y = -2\)[/tex] into the inequality:
[tex]\[ -2 \leq 4(0) + 5 \][/tex]
[tex]\[ -2 \leq 0 + 5 \][/tex]
[tex]\[ -2 \leq 5 \][/tex]
- This is true; hence, [tex]\((0, -2)\)[/tex] does satisfy the inequality.

D. For the point [tex]\((-4, 0)\)[/tex]:
- Substitute [tex]\(x = -4\)[/tex] and [tex]\(y = 0\)[/tex] into the inequality:
[tex]\[ 0 \leq 4(-4) + 5 \][/tex]
[tex]\[ 0 \leq -16 + 5 \][/tex]
[tex]\[ 0 \leq -11 \][/tex]
- This is not true; hence, [tex]\((-4, 0)\)[/tex] does not satisfy the inequality.

Therefore, the point that is a solution to [tex]\( y \leq 4x + 5 \)[/tex] is:

C. [tex]\((0, -2)\)[/tex]