Question

What is the equation for the line in slope-intercept form?

Answer 1

y = 8x

Explanation:

y-intercept: 0 (because it starts from the origin)

slope: go from the origin (the first point on the whole graph) to the last point of the graph since that way it would be easier... count your way up and after you've counted it should be 8. and since the line is going up, its a positive slope. therefore, the slope is 8

Answer 2

y = 8x

Explanation:

slope-intercept form: y = mx + b when m = slope and b = y-intercept

y-intercept is when the line crosses the y (vertical) axis. This is at (0,0) so b = 0

Next, slope = change in y/change in x

There are 3 points plotted but only 2 are centered on the grid well.

(0,0) and (2, 16)

slope = change in y/change in x

slope = (0 - 16) / (0 - 2)

slope = -16/-2

slope = 8

so when m = 8 and b = 0: y = mx + b

y = 8x + 0 so:

y = 8x