Thursday

November 27, 2014

November 27, 2014

Posted by **Anonymous** on Thursday, October 8, 2009 at 10:56pm.

1. (12,y), (-6,9/7), m= -1/6

_____________

write an equation in slope-intercept form. (then graph the equation).

2. 18y+2x-9=0

3. 3x-4y=-8

- algebra -
**jim**, Friday, October 9, 2009 at 2:42amy=mx+c

m= -1/6

y=-(1/6)x+c

The point (-6,9/7) must be on that line: use it to find c by plugging in x and y like

9/7=-(1/6)(-6)+c

So what's c?

So now we have the equation of the line, we need the value of the point on that line where x=12. Plug in 12 instead of x in the equation and work out what y must be.

18y+2x-9=0

we need to write as y=mx+c

18y+2x-9=0

move everything but y to the RHS:

18y=-2x+9

y=(-2/18)x+9/18

which you can simplify a bit.

You can do the other yourself the same way.

**Answer this Question**

**Related Questions**

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

Algebra - Can someone check my answers? 1. Write the equation of the line that ...

algebra - Find the slope of any line perpendicular to the line through the ...

Algebra - I have an assignment that asks me to write an equation in slope-...

math help & correction - Problem #1 Is this correct or wrong? Find the slope of ...

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

algebra - Could someone please check my work. what is the slope of the line that...

Algebra 2 - 1. Find the slope of the line through the pair of points. (-1/3,0) ...

Algebra - graph the equation x-3=y (where do I plot the points?) find the ...

mat - write the equation of the line passing through each of the given points ...