Hi I have a question. I am given an x intercept of -1/2 and a y intercept of 6 and i am supposed to find the point slope form and the slope intercept form. i know that for point slope it is y-y1=m(x-x1) but i seem to just not be able to get the correct answer. thanks in advance!
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Need help!!!
- Thread starter mthcs
- Start date
well i thought the point-slope form would be y - 0 = 3(x + 1/2)
Your slope of 3 is not correct.
and the slope-intersect form would be y = 3x + 1.5
If you correct your slope, then you can correct
both forms of your equations.
An x-intercept of -1/2 means the point at that intersection is (-1/2, 0).
A y-intercept of 6 means the point at that intersection is (0, 6).
Plug those values into the slope formula:
\(\displaystyle m \ = \ \frac{y_2 - y_1}{x_2 - x_1}.\)