what is the equation for the line that passes through the point(5,5) and has a slope of 2?

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what is the equation for the line that passes through the point(5,5) and has a slope of 2?

2007-10-11 06:53:54 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

4 answers

point slope form of a line:

y - (given y point) = (slope) TIMES (x - (given x point))

y - 5 = 2(x-5)

Slope intecept form, get y by itself

distribute the 2:

y - 5 = 2x - 10

add the five to both sides

y = 2x - 5

Your done!

2007-10-11 07:01:17 · answer #1 · answered by ShortStuff 5 · 1⤊ 0⤋

Solve for C in y = 2x + C, given x = 5, y = 5.

2007-10-11 14:00:02 · answer #2 · answered by Anonymous · 0⤊ 0⤋

Or plug into the formula for a line in point slope form

(y-y1) = m (x-x1)

where x1,y1 are points on the line and m is the slope.

2007-10-11 14:02:16 · answer #3 · answered by hsueh010 7 · 1⤊ 0⤋

y - 5 = 2(x - 5)
y - 5 = 2x - 10
y = 2x - 5

2007-10-11 15:21:19 · answer #4 · answered by Como 7 · 0⤊ 0⤋