Question

Type an equation for the

following pattern.
X
1
2
3
4
S
Y
3
4
5
6
7
y=[? ]x+[ ]

Answer 1

y = x + 2

Explanation:

change in y is 1

change in x is 1

ratio of change in y to change in x is 1

y = mx + c, where m = 1, y = 1x + c

substituting x = 1 and y = 3

in the equation y = x + c, we have c = 2.

therefore y = x + 2