Sangeetha Pulapaka
0

STEP 1: Recall what is a linear function

http://www.columbia.edu/itc/sipa/math/linear.html

STEP 2: Recall how to write a linear function from a word problem

https://www.qalaxia.com/viewDiscussion?messageId=5d09a82e69344e05c912eaa8


STEP 3: Write the linear equation

Tamir has to walk 10 km, so let us take that as the y-intercept.

He walks one km per day so let us take the slope m as 1

Plugging in these values in the slope-intercept form we get

y = x + 6


STEP 4: Recall on how to solve for x

https://www.qalaxia.com/viewDiscussion?messageId=5cc57dd27b51433d00809de8

The total number of kilometres travelled by Tamir is 10, so plugging in y = 10

we get 10 = x + 6

x = 4

So, Tamir will have to make in 4 trips to school to walk 10 km.