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4x+2y=12 how do i find the y-intercept

0 votes

how do i find the y-intercept.

asked Mar 3, 2014 in ALGEBRA 1 by dkinz Apprentice

2 Answers

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Given line 4x+2y = 12

To find y intercept substitute x = 0 in line equation.

4(0)+2y = 12

2y = 12

Divide to each side by2.

y = 6

y-intercept is 6.

answered Mar 3, 2014 by david Expert
0 votes

Slope-intercept form line equation is y = mx + b, where m is slope and b is y-intercept.

The equation is 4x + 2y = 12.

Write the equation in slope - intercept - form.

2y = - 4x + 12

y = (- 4/2)x + (12/2)

y = - 2x + 6.

Compare the equation with slope - intercept - form line equation.

y - intercept is 6.

answered May 23, 2014 by lilly Expert

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