-7x+9y = 54 9y = 7x+54 y = 7/9x+6 which is now in slope-intercept form
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
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.
9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6
x=6
6
-7x+9y = 54 9y = 7x+54 y = 7/9x+6 which is now in slope-intercept form
The slope of the equation y=-7x +6 is -7 or -7/1... The standard form is y=mx+b, m being the slope.
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
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
9x+6 = 7x+18 9x-7x = 18-6 2x = 12 x = 6
x=6
Y= 6/7x +6
7x + y + z = 6 7x + y + 4z = 9 y + x = 6 Take the first two statements and subtract them. 7x + y + z = 6 7x + y + 4z = 9 _____________ 0 + 0 - 3z = -3 Therefore: z = 1 Then you are left with: 7x + y + 1 = 6 7x + y + 4 = 9 which is impossible, so this is an impossible equation.
y=mx+b y = 3/7x + 6/7 y equals three sevenths x plus six sevenths
No, because a slope needs to be negative and opposite the other slope to be perpendicular and in this problem it is not.