The ordered pairs below represent a linear relation between x and y.

(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)

Which of the following is a correct statement about this relation?

A. The slope of the line represented by this table is -2 and the y-intercept is -4.
B. The slope of the line represented by this table is 2 and the y-intercept is 7.
C. The slope of the line represented by this table is 2 and the y-intercept is -4.
D. The slope of the line represented by this table is -2 and the y-intercept is 7.

Respuesta :

Slope = rise/run
(-2,3) (0,7)

7-3 /0- -2 = 4/2= 2
When x = 0 y=7 intercept

Answer is B

Answer:

Option B -  The slope of the line represented by this table is 2 and the y-intercept is 7.

Step-by-step explanation:

Given : The ordered pair below represent a linear relation below x and y.

(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)

The slope form is [tex]y=mx+c[/tex]

where m is the slope of line and c is the y-intercept.

or to find slope between two points are [tex]m=\frac{y-y_1}{x-x_1}[/tex]

Since they are ordered pairs so, there slopes were same

Let take points (-3,1), (-2,3)

[tex]m=\frac{y-y_1}{x-x_1}[/tex]

[tex]m=\frac{3-1}{-2-(-3)}=\frac{2}{1}=2[/tex]

Therefore, the slope of the given linear function is 2

Now, we have to find y intercept we put in slope form

[tex]y=mx+c[/tex]

[tex]y=2x+c[/tex]

Given pairs are ordered therefore, they satisfy the above equation so let point (-2,3)

[tex]3=2(-2)+c[/tex]

[tex]c=3+4=7[/tex]

So, slope of the line is 2 and y-intercept is 7.

Therefore, Option B is correct.