We must understand that one has the value of £8.95 further it ask you to find out the total cost of 7 forks which has to be the equation of £8.95 multiply by 7 and resulting to £62.65
The function modelled by the height (x) of the tree is as follows: y - 180 = (368 - 180)/(7 - 3) (x - 3) y - 180 = 47(x - 3) = 47x - 141 y = 47x - 141 + 180 = 47x + 39
Therefore, after 10 years, the tree will be 47(10) + 39 = 470 + 39 = 509 cm tall
