Blog

A patient has an infection caused by a gram positive bacteria that looks like clusters of spheres under a microscope and tests positive for catalase.  The bacteria is.

From lab… Which agar is used to differentiate between different Streptococcus species?

Gram negative bacilli are divided into two groups.  Coliforms are classified as

Bacteria can mutate by scavenging bacteria from dead cells in their environment.  This is called

From lab… MacConkey Agar identifies bacteria based on

Find the x-intercepts of the quadratic function. Show your work.    f ( x ) = – ( x – 1 ) 2 + 4

Find the horizontal asymptote, if any, of the graph of the rational function.     g ( x ) = 20 x 3 4 x 3 + x 2 – 1

Divide using synthetic division. Show your work.   ( 3 x 4 – 2 x 2 – 10 x + 1 ) ÷ ( x + 2 )

Use properties of logs to expand the log expression as much as possible.    log 4 x y   

Find an extra point for the graph of  f ( x ) = x + 2 x 2 + x – 6 .  What would the y-coordinate be for the x-coordinate 3?  Round to the nearest tenth.