The points in the table lie on a line. Find the slope-intercept form of the line.
x -2 0 2 4
y -8 -7 -6 -5

Question

The points in the table lie on a line. Find the slope-intercept form of the line.
x -2 0 2 4
y -8 -7 -6 -5

tkhunny · Answer

It takes only two.  Pick your two favorites and write the equation of the line containing them (or defined  them).  Then prove that the other two actually are on the line.

anonymous · Answer

I still do not understand how to that.

ybarrap · Answer

Take differences between y values divide by x values:

tkhunny · Answer

Given two points, write the equation of the line defined by them.  You've never done that?

anonymous · Answer

no

tkhunny · Answer

Is this for a statistics class?  Is this a placement exam?

anonymous · Answer

algebra and this a practice exam.

tkhunny · Answer

(shakes head) - Not at you. Just seems like something is out of order in your class.

The Slope-Intercept form looks like this: y = mx + b.

b is the y-intercept. The y-intercept is the y-value associated with the value x = 0. Do you this value in your chart?