1 00:00:00,650 --> 00:00:03,844 Write the equation y equals one third 2 00:00:03,845 --> 00:00:07,410 X minus four in standard form. 3 00:00:07,411 --> 00:00:11,410 The given equation is in slope intercept form. 4 00:00:11,411 --> 00:00:16,290 Remember that was Y equals MX plus B. 5 00:00:16,291 --> 00:00:21,360 Standard form is ax plus by equals C. 6 00:00:22,050 --> 00:00:26,070 Step one: get rid of the fractions in the equation. 7 00:00:26,650 --> 00:00:29,610 Multiply every term by three. 8 00:00:29,611 --> 00:00:33,218 Three Y equals three times the quantity 9 00:00:33,219 --> 00:00:36,040 of one third x minus four. 10 00:00:36,890 --> 00:00:41,504 Step two: distribute and simplify 11 00:00:41,505 --> 00:00:43,980 three Y equals X minus twelve. 12 00:00:45,070 --> 00:00:48,448 Step three: bring the x term to 13 00:00:48,449 --> 00:00:51,194 the same side as the y term. 14 00:00:51,195 --> 00:00:54,450 Subtract x from both sides. 15 00:00:54,451 --> 00:00:59,920 Three Y minus X equals X minus X minus twelve. 16 00:01:00,930 --> 00:01:04,343 Step four: simplify three y 17 00:01:04,344 --> 00:01:07,510 minus X equals negative twelve. 18 00:01:07,511 --> 00:01:09,860 Notice the y term is first. 19 00:01:10,550 --> 00:01:15,690 Step five: write the equation so the x term is first. 20 00:01:15,691 --> 00:01:20,120 Negative x plus three y equals negative twelve. 21 00:01:20,810 --> 00:01:22,556 The problem is now that the 22 00:01:22,557 --> 00:01:25,308 x is negative. In standard form 23 00:01:25,309 --> 00:01:27,720 do not lead with a negative number. 24 00:01:28,330 --> 00:01:32,812 Step six: multiply each term by negative one so 25 00:01:32,813 --> 00:01:36,108 as not to lead with a negative. Negative one 26 00:01:36,109 --> 00:01:39,996 times the quantity of negative x plus three y 27 00:01:39,997 --> 00:01:43,316 equals negative twelve becomes x minus three 28 00:01:43,317 --> 00:01:44,720 Y equals twelve.