What is the equation of the line shown in the graph? Y
X
O y = 0.5% -1
O y = -2x + 1
O y = 2x + 1
O y = -0.5x + 1

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

How to solve a simultaneous equation involved with fractions?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?