ANSWER
y = x + 7
EXPLANATION
We want to use the two points to form a linear equation in slope-intercept form.
That is in the form:
y = mx + c
To do this, we first find the slope by using formula:

where (x1, y1) = (3, 10)
(x2, y2) = (6, 13)
So, we have that:

The slope, m, is 1.
Now, we use the point-slope formula to find the equation. That is:

That is the answer.
hope it would be helpful for you
Answer:
9 years ( approximately)
Step-by-step explanation:
900(1.03)^t = 1200
(1.03)^t= 1.33
( 1.03)^t= ( 1.03)^9
So, t= 9