b: When x increases by 1, y increases 1 unit.
c. Apply the slope formula (m)
[tex]m=\frac{(y2-y1)}{(x2-x1)}[/tex]
Replace with 2 points form the table:
For example:
Point 1 = (x1,y1)= (0,3)
Point 2= (x2,y2)= (1,4)
Replacing:
[tex]m=\frac{4-3}{1-0}=\frac{1}{1}=1[/tex]
Slope = 1
It doesn't need to be written because x multiplied by 1 is equal to x.
Graph.
y=mx+b
y=x+3
Where :
b= y-intercept = 3( where the line crosses the y-axis)
m= slope=1
