Thursday

July 24, 2014

July 24, 2014

Posted by **Ciscokid** on Friday, January 20, 2012 at 2:58pm.

1. 3x – 2y – 1 = 0

2.5x + y – 12 = 0

3. 4x + 3y – 4 = 0

I cant Figure any of these out or how to do them..

- Math -
**Reiny**, Friday, January 20, 2012 at 3:24pmYou should have learned that the slope of a line is equal to tanØ, where Ø is the angle that the line makes with the positive x-axis

for #1

slope of that line is 3/2

so tanØ = 3/2

Ø = tan^-1 (3/2)

my calculator gave me appr. 56.3°

do the others the same way

**Related Questions**

Calculus - Write the equation 4x + 5y – 3 = 0 in normal form. Then, find the ...

Precalculus check answers help! - 7.) Write the equation 3x + 4y – 7 = 0 in ...

math / science - find the vector with all of the following properties: magnitude...

science - vector A has a magnitude of 12 units and makes an angle of 30 with the...

Physics - A particle undergoes three displacements. The first has a magnitude of...

physics - A particle undergoes two displacements. The first has a magnitude of ...

chemistry - A man pushing a mop across a floor causes it to undergo two ...

physics - A man pushing a mop across a floor causes the map to undergo two ...

college physics - A man pushing a mop across a floor causes it to undergo two ...

Precalculus check answers help! - 1. Which expression is equivalent to cos ...