The value of z is zero
Step-by-step explanation:
The slope is the steepness of the line.
The formula for slope is given by:
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\Here\\(x_1,y_1)\ are\ the\ coordinates\ of\ first\ point\ on\ line\\(x_2,y_2)\ are\ the\ coordinates\ of\ second\ point\ on\ line[/tex]
Here
(x1,y1) = (1,z)
(x2,y2) = (2,8)
So,
[tex]m=\frac{y_2-y_1}{x_2-x_1}\\8 = \frac{8-z}{2-1}\\8=\frac{8-z}{1}\\8-8 = -z\\z = 0[/tex]
The value of z is zero
Keywords: slope, Line
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