170,579 views
34 votes
34 votes
Write an equation in slope intercept form from a table?

X. 4. 6. 7. X. 14. 20. 23

User Laurynas Lazauskas
by
2.9k points

1 Answer

28 votes
28 votes

9514 1404 393

Answer:

y = 3x + 2

Explanation:

Assuming your table values are (x, y) = (4, 14), (6, 20), (7, 23), the slope and intercept formulas can be used.

m = (y2 -y1)/(x2 -x1)

m = (20 -14)/(6 -4) = 6/2 = 3

b = y -mx

b = 14 -3(4) = 2 . . . . for (x, y) = (4, 14)

Then the equation of the line is ...

y = mx + b

y = 3x + 2

User Henry Neo
by
3.5k points