Question

TOARE Find the price (dollars per kilogram) of oranges at the grocery store. dollars per kilogram 20 18+ 16+ 14+ 12+ Total cost (dollars) 10- 8+ 67 2 2 3 5 Do 14 problems

Answer 1

$3 per kg

1) Examining the graph, we can locate the following points

(1,3) and (3,9)

2) Since it is a direct variation, we can write that function as

y=kx

3=1*k

9=3*k

So y=3x is the rule of that function

3) Hence, point (1,3) expresses the unit rate. Then we can state

1 kg of orange costs $3

Or $3 per kg