The equation of the line in point-slope form is equal to
The equation of the line in standard form is equal to
step 1
Find the slope m
Let
step 2
convert to standard form
sinR =
noting that the sin ratio =
opposite to ∠P is QR and hypotenuse is PQ ( opposite right angle )
Please send a picture of the figure
Answer: 1 gallon costs 0.40 $
Step-by-step explanation: 6 gallons / 15$ = 0.4 gal/$