Concept of Function Quiz Level Question 3
The table and graph both represent the same relationship. Which
equation also represents that relationship?
12
х
у
0
10
0
2
4
6
4
8
6
12
4
2
X
0
N
4
y = 2x
y = x + 2
y = x2
y = x + 8

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?