MEDAL!

When asked to find the equation (in slope-intercept form) to perpendicular or parallel line with a given slope, when do we change the y-intercept and when do we keep it the same?

Question

MEDAL!

When asked to find the equation (in slope-intercept form) to perpendicular or parallel line with a given slope, when do we change the y-intercept and when do we keep it the same?

thesmartone · Answer

For perpindicular
if they give you a point along with the slope, you change the y-intercept

otherwise you keep it the same.

For parallel,
I guess you change it all the time :P

thesmartone · Answer

perpendicular*

thesmartone · Answer

but if you're not sure, it doesn't hurt to look at the answer choices :P

calculusxy · Answer

okay

calculusxy · Answer

can you help me with another question but with dividing radicals?

calculusxy · Answer

$$\frac{ 9 }{ \sqrt{25} }$$

calculusxy · Answer

@TheSmartOne

thesmartone · Answer

$\sf\Large \frac{9}{\sqrt{25}} = \frac{9}{\sqrt{25}}  \times \frac{\sqrt{25}}{\sqrt{25}} = \frac{9\sqrt{25}}{25}$