Answer to Question #303918 in Algebra for Sandy

Question

A jewellery store sells bead necklaces. Each necklace costs R40 for the wire and R15 per bead. There exists a linear relationship between the cost of the necklace and the number of beads the necklace has. The cost, C, is dependent on the number of beads, n. The graph that represents this relationship correctly is [1] C n 340 40 20 [2] C n 335 8 [3] C n 340 20 [4] C n

Answer 1

$$y=15x+40$$

The cost, $C,$ is dependent on the number of beads, $n.$

$$C(n)=15n+40,n\ge 0$$