Functions · S2

Linear modelling from contexts

Question 1/8+12 XP
For : calculate .
Linear functionf(x) = 6x + 8
-2-10123-202040xy
Δx = 1Δy = 6
y-intercept
graph of fΔx (run)Δy (rise)y-interceptgiven point P
The line meets the y-axis at 8. From there 1 to the right and 6 up: that ratio is the slope m = 6.