"ou have discovered another alien. Find the correct
escue path before answering this question.
Which statements are true about the equation of the
ine used to save this alien?
The y-intercept is not visible on the graph
The slope does not exist for this line.
The y-intercept is positive.
The line crosses the x-axis at -3.

ou have discovered another alien Find the correct escue path before answering this question Which statements are true about the equation of the ine used to save class=

Respuesta :

Answer:

Correct options are A and D.

Step-by-step explanation:

From the given graph it is clear that the spaceship is located at (-4,3). The alien is at (-2, -3).

If a line passes through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex], then the equation of line is

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

The equation of line is

[tex]y-3=\frac{-3-3}{-2-(-4)}(x-(-4))[/tex]

[tex]y-3=\frac{-6}{2}(x+4)[/tex]

[tex]y-3=-3(x+4)[/tex]

[tex]y-3=-3x-12[/tex]

Add 3 on both sides.

[tex]y=-3x-12+3[/tex]

[tex]y=-3x-9[/tex]                .... (1)

Slope intercept form of a line is

[tex]y=mx+b[/tex]                .... (2)

where, m is slope and b is y-intercept.

On comparing (1) and (2) we get

[tex]m=-3,b=-9[/tex]

It means,

Slope = -3

y-intercept = -9

Points from -6 to 6 are labeled on y-axis. The y-intercept is -9, so it is not visible on the graph. Option A is correct.

Substitute y=0 in equation (1) to find the x-intercept.

[tex]0=-3x-9[/tex]

[tex]3x=-9[/tex]

Divide both sides by 3.

[tex]x=-3[/tex]

x-intercept is -3. It means the line crosses the x-axis at -3. Option D is correct.

Answer:

A, and D

Step-by-step explanation:

I got it right on edge.