Answer:
Step-by-step explanation:
y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line y-6x+7 = 0 and calculate its properties.
Graph of a Straight Line
Calculate the Y-Intercept :
Notice that when x = 0 the value of y is -7/1 so this line "cuts" the y axis at y=-7.00000
y-intercept = -7/1 = -7.00000
Calculate the X-Intercept :
When y = 0 the value of x is 7/6 Our line therefore "cuts" the x axis at x= 1.16667
x-intercept = 7/6 = 1.16667
Calculate the Slope :
Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is -7.000 and for x=2.000, the value of y is 5.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 5.000 - (-7.000) = 12.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)
Slope = 12.000/2.000 = 6.000
Slope = 12.000/2.000 = 6.000
x-intercept = 7/6 = 1.16667
y-intercept = -7/1 = -7.00000
