Question

Suraj took a slice of pizza from the freezer and put it in the oven.

Answer 1

Its 5 per degrees per minute l. You can tell by seeing that 2 minutes is at 10 temperature. Then you can divide by 2 and get 1 minute for 5 degrees.

Answer 2

We need to read two points off the graph. To read a point off a graph, it is easiest if the point lies on the intersection of grid lines.

I see (0.75, 0) and (2, 10).

The slope of the graph is the rate at which the oven heats the pizza expressed as a change of temperature in the pizza in degrees per minute.

m = (10 - 0)/(2 - 0.75) = 10/1.25 = 8

Answer: 8 deg C per minute