1. Rory works as a drilling foreman on an oil rig. He recorded the
depth of the drilling site and
displayed the data in a graph.
А
Drilling Depths
200
-150
Metres
-100
:50
Day 5 Day 10 Day 15 Day 20 Day 25
Days
Determine the approximate
drilling depths for each day.
a) Day 1
b) Day 28
c) Day 6
d) Day 12

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Pranza plotted point a in the coordinate plane below.