Graphs

Question 1

Slope equation

Answer 1

Change in y over change in x

Question 2

Area of a triangle

Answer 2

Half the with by the height.

Question 3

To find out if the relationship between something is decreasing or increasing, draw unit slope, and compare.

Or can try to see what the difference between the relationship parameters is and whether it is increasing or decreasing.

Answer 3

Unit slope is delta y over delta x equal to one or where x is equal to y.

See purple q 64.