Purvi S.

asked • 07/04/21# how do you write an equation with just a graph?

so how do we form an equation when the coordinates are given? pls help fast and put the procedure as well. along with an explanation too. thank you and pls hurry

**Plot the following points on a graph paper:**

x 1 2 3 4 5

# y =5 8 11 14 17

# try to guess what is the equation that passes through these points by joining these points

## 1 Expert Answer

Patrick B. answered • 07/04/21

Math and computer tutor/teacher

When x increases by 1, y increases by 3.

Therefore, it is a LINE, with linear function y = MX + b

the slope is m=3/1 = 3.

B = y - mx where (x,y) is any given point of your choice.

Using (1,5),

B = y - mx = 5 - 3*1 = 5-3=2

Final answer:

y = 3x+2

Purvi S.

Thank you so much!!!07/04/21

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