Friday,(October(23,(2015( MAT145 · Friday,(October(23,(2015( MAT145 12 ft---> $120 12 ft--->...

Friday,  October  23,  2015   MAT  145  

Friday,  October  23,  2015   MAT  145  

Friday,  October  23,  2015   MAT  145  

D

A B

C

Friday,  October  23,  2015   MAT  145  

12 ft ---> $120

12 ft ---> $120

12 ft ---> $120

46 ft ---> $138

12 ft ---> $120

46 ft ---> $322⇒

DD

A B BA

C C

Friday,  October  23,  2015   MAT  145  

x ft ---> $10x

x ft ---> $10x

x ft ---> $10x

y ft ---> $3y

x ft ---> $10x

y ft ---> $7y⇒

DD

A B BA

C C

Friday,  October  23,  2015   MAT  145  

x ft ---> $10x

x ft ---> $10x

x ft ---> $10x

y ft ---> $3y

x ft ---> $10x

y ft ---> $7y

10x + 10x + 3y + 7y = 70020x + 10y = 700

y = 700-20x

10 = 70-2x

⇒

DD

A B BA

C C

Friday,  October  23,  2015   MAT  145  

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x ft ---> $10x

x ft ---> $10x

x ft ---> $10x

y ft ---> $3y

x ft ---> $10x

y ft ---> $7y

⇒ A(x) = x 70-2x( )10x + 10x + 3y + 7y = 70020x + 10y = 700

y = 700-20x

10 = 70-2x

⇒

DD

A B BA

C C

Friday,  October  23,  2015   MAT  145