Answer:
Answer:
n = 19
Step-by-step explanation:
1. Find the linear equation (this means use the formula for a line which is: y=mx+b)
m is the slope
b is the y-intercept (where the line crosses the y-axis)
x and y are points
2. Find m
Use the slope formula
m = (y2 - y1)/(x2-x1)= (10-1)/(3-1) = 9/2
m = 9/2
3. Plug a point back in to find b
(Using first point)
1=(9/2)(0)+b
1=b
So Equation is y=(9/2)x+1
4. Plug in (4,n)
4 = x
n = y
n = (9/2)*4 + 1
n = (9*2) + 1
n = 18 + 1
n = 19
