Question

The points on the following graph shows the relationshipbetween and+First, complete the table of and coordinatorNext, which rule describes the relationship betweenand y in the graph?Choose 1 answerMultiply X by 2. Then subtract 4 from the product togetySubtract from x to get y

Answer 1

x | y

3| 2

5 | 6

7 | 10

A)

1) Locating the points, we can see that to each coordinate of x corresponds the following y-coordinate:

x | y

3| 2

5 | 6

7 | 10

2) Let's find out the rule for that function. Picking two points of that function: (2,0) and (3,2) plugging into the slope formula

and replacing point (2,0) and the slope into the slope-intercept formula we have:

(2,0)

y=mx +b

0=2(2) +b

0=4 +b

-4 =b

3) Hence, the rule of that function is f(x) = 2x -4 examining the option we have as the answer A