Homework Help: Math

Posted by Shadow on Tuesday, April 13, 2010 at 9:42pm.

Write the slope-intercept form of an equation of the line that passes through the given point and is parallel to the graph of each equation.

1. (3,2), y=x + 5
2.(4,-6),y=-3/4x + 1
3.(-8,2),5x-4y=1

Could you guy check if these are the answer?
1.y=x-1
2.y=-3/4x -3
3.y=5/4x + 12

Thanks

Math - Reiny, Tuesday, April 13, 2010 at 9:50pm
good job

A quick way to see if you were right would have been to sub in the given point in your new equation.
If it satisfies, you're ok.
That is how I checked your equations.
Math - Shadow, Tuesday, April 13, 2010 at 9:55pm
Could do use one of mine and show me how you check it? Thanks
Math - Reiny, Tuesday, April 13, 2010 at 10:06pm
last one,
point (-8,2) , your equation y = (5/4)x + 12

Left side
= y
= 2
Right side
= (5/4)x + 12
= (5/4)(-8) + 12
= -40/4 + 12
= -10 + 12
= 2

Left side = Right side,
everything is good.

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