# How to construct linear model?

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Can someone please help me with question 10? Thank you sooo much!

Can someone please help me with question 10? Thank you sooo much!

##### 1 Answer

Jan 12, 2018

#### Answer:

#### Explanation:

#color(white)(x)$775to120rArrk=775/120=6.458....#

#color(white)(x)$975to160rArrk=975/160=6.093....#

#"consider the difference"#

#975-775=$200" and "160-120=40#

#rArrk=200/40=5#

#rArrC=5n#

#C=5xx120=600" and "#

#C=5xx160=800#

#"now "775-600=$175" and "975-800=$175#

#"sum already in counter "=$175#