Lalagrl
contestada

If two points on line l above have coordinates (0, A) and (2, −3), and the slope of the line is A, then what is the value of A?
(A) −2 (B) −1 (C) 0.5 (D) 1 (E) 3

Respuesta :

Answer:

A = -1

So, option (B) is the correct answer.

Step-by-step explanation:

The two points on line have coordinates: p (x₁, y₁) = (0, A) and q(x₂, y₂) = (2 , -3)

Slope of line = A

Slope of line = [tex]\frac{y_{2} - y_{1}}{x_{2} -x_{1}}[/tex]

Now since the slope of line is A  and its has two coordinates (0, A) and (2 , -3), ∴

[tex]A = \frac{y_{2} - y_{1}}{x_{2} -x_{1}}[/tex]

[tex]A = \frac{-3 - A}{2 - 0}[/tex]

[tex]2A = -3 - A[/tex]

[tex]2A + A = -3[/tex]

[tex]3A = -3[/tex]

[tex]A = -1[/tex]

So, option (B) is the correct answer.