x + 7y = 7 ⇒ 7y = -x + 7 ⇒ y = -x/7 + 1 ⇒ y intercept is 1.
(7,12)
5y+8=7y 2y=8 y=4
This cannot have an answer. "7y12" is not correct. If you put a plus before the twelve, this is how you solve it. y=m(slope)x(independant variable)+b(y intercept) 3x-7y+12 +7y 7y=3x-12 /7 /7 /7 y=3/7+1.714285 repeating 1.714285 repeating is the y intercept of there is a minus sign, just switch the positive on the y intercept.
11
x + 7y = 7 ⇒ 7y = -x + 7 ⇒ y = -x/7 + 1 ⇒ y intercept is 1.
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
The x intercept would be 14 and the y intercept would be 6.
8x - 7y + 2 = 0 The slope-intercept form is NOT the standard form. The above form is easily generalised to 3 (or more) dimensions, not so with the slope-intercept form.
14x = 7y+28 -7y = -14x+28 Divide all terms by -7 to find the value of y: y = 2x-4 which is now in slope intercept form
5x - 7y = -35At the x-intercept, y=0:5x = -35x = -7At the y-intercept, x=0:-7y = -35y = 5
(7,12)
(9,6)
This form. Y = mX + c- 2X - 7Y = - 2- 7Y = 2X - 2Y = (- 2/7)X + 2/7==============Y intercept = 2/7----------------------
Remember that slope-intercept form is: y = (slope)x + b 9x - 7y = 4 1) First, subtract 9x on both sides. -7y = -9x + 4 2) Then, divide both sides by -7. y = 9/7x + 4 3) There is your answer: y equals nine sevenths x plus 4.
Put in this form. Y = mX + c3X - 7Y = 8- 7Y = - 3X + 8Y = (3/7)X - 8/7===========Y intercept = - 8/7-----------------------
14x+7y=-9