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Vera wants to graph a line that passes through [tex]\((0,2)\)[/tex] and has a slope of [tex]\(\frac{2}{3}\)[/tex]. Which points could Vera use to graph the line? Select three options.

A. [tex]\((-3,0)\)[/tex]
B. [tex]\((-2,-3)\)[/tex]
C. [tex]\((2,5)\)[/tex]
D. [tex]\((3,4)\)[/tex]
E. [tex]\((6,6)\)[/tex]


Sagot :

To find which points Vera can use to graph the line passing through [tex]\((0, 2)\)[/tex] with a slope of [tex]\(\frac{2}{3}\)[/tex], we need to determine if each point satisfies the line's equation.

Given:
- The slope [tex]\(m\)[/tex] is [tex]\(\frac{2}{3}\)[/tex].
- The line passes through the point [tex]\((0, 2)\)[/tex].

We use the point-slope form of the equation of a line:
[tex]\[ y - y_1 = m(x - x_1) \][/tex]
Substituting the given point [tex]\((0, 2)\)[/tex] and the slope [tex]\(\frac{2}{3}\)[/tex] into the equation:
[tex]\[ y - 2 = \frac{2}{3}(x - 0) \][/tex]
[tex]\[ y - 2 = \frac{2}{3}x \][/tex]
[tex]\[ y = \frac{2}{3}x + 2 \][/tex]

We will check each point to see if it lies on the line by substituting the [tex]\(x\)[/tex] and [tex]\(y\)[/tex] coordinates into this equation:

1. Checking the point [tex]\((-3, 0)\)[/tex]:
[tex]\[ y = \frac{2}{3}(-3) + 2 \][/tex]
[tex]\[ y = -2 + 2 \][/tex]
[tex]\[ y = 0 \][/tex]
This matches the [tex]\(y\)[/tex]-coordinate of the point [tex]\((-3, 0)\)[/tex], so this point is on the line.

2. Checking the point [tex]\((-2, -3)\)[/tex]:
[tex]\[ y = \frac{2}{3}(-2) + 2 \][/tex]
[tex]\[ y = -\frac{4}{3} + 2 \][/tex]
[tex]\[ y = -\frac{4}{3} + \frac{6}{3} \][/tex]
[tex]\[ y = \frac{2}{3} \][/tex]
This does not match the [tex]\(y\)[/tex]-coordinate of [tex]\(-3\)[/tex], so this point is not on the line.

3. Checking the point [tex]\((2, 5)\)[/tex]:
[tex]\[ y = \frac{2}{3}(2) + 2 \][/tex]
[tex]\[ y = \frac{4}{3} + 2 \][/tex]
[tex]\[ y = \frac{4}{3} + \frac{6}{3} \][/tex]
[tex]\[ y = \frac{10}{3} \][/tex]
This does not match the [tex]\(y\)[/tex]-coordinate of [tex]\(5\)[/tex], so this point is not on the line.

4. Checking the point [tex]\((3, 4)\)[/tex]:
[tex]\[ y = \frac{2}{3}(3) + 2 \][/tex]
[tex]\[ y = 2 + 2 \][/tex]
[tex]\[ y = 4 \][/tex]
This matches the [tex]\(y\)[/tex]-coordinate of the point [tex]\((3, 4)\)[/tex], so this point is on the line.

5. Checking the point [tex]\((6, 6)\)[/tex]:
[tex]\[ y = \frac{2}{3}(6) + 2 \][/tex]
[tex]\[ y = 4 + 2 \][/tex]
[tex]\[ y = 6 \][/tex]
This matches the [tex]\(y\)[/tex]-coordinate of the point [tex]\((6, 6)\)[/tex], so this point is on the line.

Based on the calculations, the points that lie on the line are:
[tex]\[ \boxed{(-3, 0), (3, 4), (6, 6)} \][/tex]