Discover a world of knowledge and get your questions answered at IDNLearn.com. Get prompt and accurate answers to your questions from our community of experts who are always ready to help.

Determine if the ordered pair [tex][tex]$(6,4)$[/tex][/tex] is a solution to the inequality [tex][tex]$y \ \textless \ \frac{3}{4} x - 3$[/tex][/tex].

A. No, because [tex][tex]$(6,4)$[/tex][/tex] is above the line
B. Yes, because [tex][tex]$(6,4)$[/tex][/tex] is below the line
C. Yes, because [tex][tex]$(6,4)$[/tex][/tex] is on the line
D. No, because [tex][tex]$(6,4)$[/tex][/tex] is on the line


Sagot :

To determine whether the ordered pair [tex]\((6, 4)\)[/tex] is a solution to the inequality [tex]\( y < \frac{3}{4}x - 3 \)[/tex], we need to compare the [tex]\(y\)[/tex]-value of the point to the value obtained from the expression [tex]\( \frac{3}{4}x - 3 \)[/tex].

Given the inequality:
[tex]\[ y < \frac{3}{4}x - 3 \][/tex]

Let's substitute [tex]\(x = 6\)[/tex] into the expression on the right-hand side of the inequality to find its value:

[tex]\[ \frac{3}{4}(6) - 3 \][/tex]

First, calculate [tex]\(\frac{3}{4} \times 6\)[/tex]:

[tex]\[ \frac{3}{4} \times 6 = \frac{18}{4} = 4.5 \][/tex]

Next, subtract 3 from 4.5:

[tex]\[ 4.5 - 3 = 1.5 \][/tex]

Now, we know that the expression [tex]\(\frac{3}{4}x - 3\)[/tex] evaluates to 1.5 when [tex]\(x = 6\)[/tex].

So, we compare the [tex]\(y\)[/tex]-value of the ordered pair [tex]\((6, 4)\)[/tex] to this value 1.5:

- If [tex]\(y < 1.5\)[/tex], the point [tex]\((6, 4)\)[/tex] is below the line represented by the inequality.
- If [tex]\(y = 1.5\)[/tex], the point [tex]\((6, 4)\)[/tex] is on the line.
- If [tex]\(y > 1.5\)[/tex], the point [tex]\((6, 4)\)[/tex] is above the line.

Given that [tex]\(y = 4\)[/tex], we compare it with 1.5:

- [tex]\(4 > 1.5\)[/tex]

Thus, the [tex]\(y\)[/tex]-value 4 is greater than 1.5, meaning that the point [tex]\((6, 4)\)[/tex] is above the line represented by the inequality [tex]\( y < \frac{3}{4}x - 3 \)[/tex].

Therefore, the ordered pair [tex]\((6, 4)\)[/tex] is not a solution to the inequality because it is above the line.

The correct answer is:

No, because (6, 4) is above the line.