A photograph now measures 15 cm wide by 60 cm long. Before it was enlarged, its width was 5 cm. Which equation represents this proportion correctly?

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

The graph shown is the graph of which function?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply