### Concept (1)

If a student learns about writing an equation to describe a picture or a pattern, it will help him or her understand how graphs and equations work and how they apply to the real world. Writing an equation requires students to understand how to interpret graphs, and it helps to understand functions, function notation and how to connect graphs , tables and equations.

### Sample Problems (4)

Need help with "Writing an Equation to Describe Pictures" problems? Watch expert teachers solve similar problems to develop your skills.

a) Write an equation to describe the number of boxes in the pattern below.

b) How many boxes would the 8th picture have?
###### Problem 1
How to write an equation to describe a set of pictures when the slope is positive.

Write an equation to describe the number of boxes in the pattern below.

###### Problem 2
How to write an equation to describe a set of pictures when the slope is negative.

a) Write an equation to describe the number of small triangles in the pattern below.

b) How many small triangles would the 9th picture have?
###### Problem 3
How to write an equation to describe a set of pictures when the change isn't constant.
###### Problem 4
Writing an equation to describe a patterned series of pictures