Answer:
A. w = 3z+2
Explanation:
The general equation of a line with x and y axis is expressed as:
y = mx+c
Since the x-axis in the diagram is z and y-axis is w, the equation of the line will be represented as:
w = mz+c where:
m is the slope of the line
c is the intercept( the point where the line cuts the y-axis)
m =∆w/∆z
m = w2-w1/z2-z1
From the graph:
m = 8-2/2-0
m = 6/2 = 3
Intercept c = 2 (since the line intersects the y axis at y = 2)
Substituting this values in the equation of the line we have:
w = 3z+2