Question

Linear Function Context Questions from Table

Answer 1

we will use the eqaution

`c-c_1_{}=(\frac{c_2-c_1}{p_2_{}-p_1})(p-p_1)`

c1= 675

c2=525

p1=3

p2=5

Substituting into the formular yields

`\begin{gathered} c-525\text{ = (}(675-525)/(5-3))(p-3) \\ c\text{ -525 =75(p-3)} \\ c=\text{ 75p -}225+525 \\ c\text{ =75p+300} \\ \text{Two phones will cost} \\ c\text{ = 75 x 2+300} \\ c=\text{ 450} \end{gathered}`