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What is the slope of the line through [tex]$(1,0)$[/tex] and [tex]$(3,8)$[/tex]?

Choose one answer:

A. [tex]-\frac{1}{4}[/tex]

B. [tex]\frac{1}{4}[/tex]

C. -4

D. 4


Sagot :

To find the slope of a line passing through two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex], we use the slope formula:

[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

Here, the coordinates of the points are [tex]\((1, 0)\)[/tex] and [tex]\((3, 8)\)[/tex]. Let's substitute these coordinates into the slope formula:

1. Identify the coordinates [tex]\((x_1, y_1) = (1, 0)\)[/tex] and [tex]\((x_2, y_2) = (3, 8)\)[/tex].
2. Plug the coordinates into the slope formula:

[tex]\[ m = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

[tex]\[ m = \frac{8 - 0}{3 - 1} \][/tex]

3. Simplify the fraction:

[tex]\[ m = \frac{8}{2} \][/tex]

[tex]\[ m = 4 \][/tex]

Therefore, the slope of the line through the points [tex]\((1, 0)\)[/tex] and [tex]\((3, 8)\)[/tex] is [tex]\(4\)[/tex].

So, the correct answer is:

(D) [tex]\(4\)[/tex]