14.2k views
4 votes
What is the explicit formula represented by this graph (4,9) (3,7) (2,5) (1,3)

User Darkk
by
8.3k points

1 Answer

6 votes

Answer:

y = 2x + 1

Explanation:

To find the explicit formula represented by the given points, we can use the slope-intercept form of a linear equation, which is y = mx + b, where m is the slope and b is the y-intercept.

First, let's find the slope using any two points from the given points:

Slope = (change in y) / (change in x) = (7-9)/(3-4) = -2/-1 = 2

Now we have the slope (m = 2). We can use any of the points and the slope to find the y-intercept (b).

Using the point (4,9):

y = mx + b

9 = 2(4) + b

9 = 8 + b

b = 1

Therefore, the explicit formula represented by the graph is:

y = 2x + 1

Hope this helps!

User Mahdi Zareie
by
8.4k points

No related questions found