contestada


Which point on the x-axis lies on the line that passes through point C and is parallel to line AB?

(1, 0)
(0, 1)
(0, 2)
(2, 0)


Which point on the xaxis lies on the line that passes through point C and is parallel to line AB 1 0 0 1 0 2 2 0 class=

Respuesta :

Step 1

Find the slope of the line AB

Let

[tex]A(-4,0)\ B(2,-3)[/tex]

we know that

The slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

substitute the values

[tex]m=\frac{-3-0}{2+4}[/tex]

[tex]m=\frac{-3}{6}[/tex]

[tex]m=-\frac{1}{2}[/tex]

Step 2

Find the equation of the line

we know that

If two lines are parallel, then their slopes are the same

so

[tex]m1=m2[/tex]

The equation of the line into slope-point form is equal to

[tex]y-y1=m(x-x1)[/tex]

we have

[tex]m=-\frac{1}{2}[/tex]

point [tex]C(-2,2)[/tex]

substitute

[tex]y-2=-\frac{1}{2}(x+2)[/tex]

[tex]y=-\frac{1}{2}x+1[/tex]

Step 3

Find the point on the x-axis that  lies on the line

the equation of the line is [tex]y=-\frac{1}{2}x+1[/tex]

we know that

if the point lies on the x-axis

then

the y-coordinate of the point is equal to zero

so

For [tex]y=0[/tex]

find the x-value

[tex]0=-\frac{1}{2}x+1[/tex]

[tex]\frac{1}{2}x=1[/tex]

[tex]x=2[/tex]

therefore

the answer is

the point is [tex](2,0)[/tex]

Answer:

(2,0)

Step-by-step explanation: