12
To work out the equation of a straight line the slope and an (x, y) coordinate must be given
If the slope is m, then the equation is y - 7 = m*(x + 3)
Point: (7, -5) Slope: -4/7 Equation: 7y = -4x-7
There is a standard equation for a straight line. It is y = mx + b. m is the slope and b is the y-intercept (when x = 0). In the question m = -4 and is therefore the slope of the line represented by the equation y = -4x + 7.
12
If the slope is 7 and the coordinate is (8, 5) then the straight line equation is y=7x-51
To work out the equation of a straight line the slope and an (x, y) coordinate must be given
If the slope is m, then the equation is y - 7 = m*(x + 3)
-7 is.
Point: (7, -5) Slope: -4/7 Equation: 7y = -4x-7
33
y = x - 7 or, y = 1*x - 7 so that the slope is 1.
It is -7
y=4x -7
Equation 7 is not an equation and so cannot have a slope.
The equation of the line works out as: y = -3x+29