y - 7x = 49 can be put into slope-intercept form by adding 7x to both sides. This gives you y = 7x + 49. This means that the slope of the line is 7, and the y-intercept is 49. So, plot the point (0,49). After that, for every time x increases by 1, y increases by 7. So, plot the point (1,56). Draw a straight line between (0,49) and (1,56) and draw arrow heads on both ends of the line to indicate that it continues infinitely.
y = -7x + 6 is the equation of a straight line. It has a slope of '-7' and a y-intercept of '6'. For it to be parallel it must be compared to another line. e.g. y = -7x + 12 is a paralle line However, y = 7x + 6 is NOT a parallel line, because the slope is in a different direction.
(x,7x)
-x + y = -7. There is nothing more that can be done with just one equation and two unknowns.
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y = -7x 0 = -7x 0 = x x-intercept point is (0, 0).
Manipulate such that y is the subject of the equation 7x - 2y = -14 2y = 7x +14 y = (7/2)x + 7
y=-10x-4
49
7x + y = 4y = 4 - 7x
y=7x
7x + y = 8 Subtract 7x from each side of the equation: y = -7x + 8
8x - 7y = 7 (A)7x + 8y = 8 (B)7*(A): 56x - 49y = 498*(B): 56x + 64y = 648*(B)-7*(A): (64+49)*y = 64-49=> 113y = 15=> y = 15/113
y = -7x + 6 is the equation of a straight line. It has a slope of '-7' and a y-intercept of '6'. For it to be parallel it must be compared to another line. e.g. y = -7x + 12 is a paralle line However, y = 7x + 6 is NOT a parallel line, because the slope is in a different direction.
7x+y=6
The Y intercept of y=7x+10 is 10.
If x=2, then 7x = 14 and if y=5 then 4y=20.
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