23.2k views
4 votes
Please I need help I am stuck on this !!

Please I need help I am stuck on this !!-example-1
User Beef
by
5.6k points

2 Answers

7 votes

Answer:

B. The slope is -2, and the y-intercept is 12.

Explanation:

Slope formula:


(Y_2-Y_1)/(X_2-X_1)=(RISE)/(RUN)

Slope-intercept formula:


Y=MX+B


(12-18=-6)/(0-(-3)=3)=(-6/3)/(3/3)=(-2)/(1)=-2

Therefore, the answer is B.

3 votes

Let's first find the slope

To find the slope you can use any two points in the table. The following are the two I picked:

(-3, 18) and (0, 12)

The formula for slope is


(y_(2)-y_(1))/(x_(2)-x_(1))

In this case...


y_(2) =12\\y_(1) =18\\x_(2) =0\\x_(1) =-3

^^^Plug these numbers into the formula for slope...


(12 - 18)/(0 - (-3))


(-6)/(3)

Simplify to...

-2

^^^This is your slope

Y-intercept is where the graph intersect with the y axis, which makes the x value 0. This means that the coordinate should look like so...

(0, y)

In this case the y-intercept is:

(0, 12)

Your answer is B!

Hope this helped!

~Just a girl in love with Shawn Mendes