Answer:
5
Step-by-step explanation:
you need to find a pattern to write an equation first and the constant term ( aka as y-intercept , where the graph touches the y-axis) is the initial value
we se that each y= x+5 ( 7=2+5, 9=4+5, ...) so the initial value was 5
if x wold be 1 then y is 5
