Saturday

November 29, 2014

November 29, 2014

Posted by **Jane** on Wednesday, April 11, 2012 at 10:27pm.

y= 1/5 x - 10; (15, -16)

A. y = -5x +19

B. y = 1/5x + 91/5

C. y = 1/5 x - 19

D. y = 5x - 19

I do know that to be parallel the slopes need to be the same. Please explain how you solve this.

- math -
**Reiny**, Wednesday, April 11, 2012 at 10:40pmSince the slope must be the same, it limits it to

choices B or C, since both have 1/5 as the slope

so plug in the given point to see which one satisfies the equation

- math -
**Jane**, Wednesday, April 11, 2012 at 10:53pmReiny, I'm not sure how to do that.

- math -
**Reiny**, Wednesday, April 11, 2012 at 11:05pmtry it in B

y = 1/5 x + 91/5

plug in (15,-16)

-16 = (1/5)(15) + 91/5

-16 = 3 + 91/5 , which is not true,

so it better be C

y = 1/5 x - 19

-16 = (1/5)(15) - 19

-16 = 3-19

-16 = -16 , ahhh that's true, so it must be C

- math -
**Jane**, Wednesday, April 11, 2012 at 11:12pmThank you so much for explaining it in detail. I really appreciate it.

**Answer this Question**

**Related Questions**

Pre- Algebra - Given an equation of a line, how do I find equations for lines ...

Algebra 1 - Write an equation in slope-intercept form for a line that passes ...

math - I need help with "write in equation in slope-intercept form for the line ...

Algebra 1 - Tell whether the lines for the pair of equations are parallel, ...

Math - How are you supposed to write an equation for the line that is parallel ...

Calculus - Write an equation of the line that passes through the point (i) ...

Math - please help - Write an equation for the line that is parallel to the ...

college alg - Find (a) the equation of a line that is parallel to the given line...

math - i have more than one question so if u no any of the answers please tell ...

MAT221 - consider the line 8x-5y=-4 find the equation of the line that is ...