Writing and Graphing Equations in Two Variables Answers

Which would most likely be graphed using a continuous graph? Check all that apply.total cost, c, of buying b cans of beanstotal cost, c, of buying g pounds of broccolispeed of a car, s, as it accelerates over time, tnumber of stamps, s, needed to mail p postcards total distance, d, that has been driven over time, tdecrease in outside temperature, F, one evening over time, t

The number of loaves of bread purchased and the total cost of the bread in dollars can be modeled by the equation c = 3.5b. Which table of values matches the equation and includes only viable solutions?

Berto has $12 to put gas in his car. If gas costs $3.75 per gallon, which ordered pair relating number of gallons of gas, x, to the total cost of the gas, y, includes the greatest amount of gas Berto can buy? (, )

✔ not viable–320–280280320

not viable–335–265✔ 265335

not viable–600✔ 0300600

A 28,000-gallon swimming pool is being drained using a pump that empties 700 gallons per hour. Which equation models this situation if g is the number of gallons remaining in the pool and t is the amount of time in hours the pool has been draining?

(–2, –800)(2.5, 1,000)(6, 1,800)✔ (8, 3,200)

any even numberany real numberany real number 0 or greater✔ any whole number

Jeff hiked for 2 hours and traveled 5 miles. If he continues at the same pace, which equation will show the relationship between the time, t, in hours he hikes to distance, d, in miles? Will the graph be continuous or discrete?

Juan spent 10 minutes on his history homework and 3 minutes per question on his math homework. Which graph shows the total homework time, t, related to the number of math questions, q?

55 = –0.5w55 = 0.5w✔ p = 55 – 0.5wp = 55 + 0.5w

any real number 0 to 55✔ any real number 45 to 55any whole number 0 to 55any whole number 45 to 55

Use the graph to complete the statements. The car gets miles to the gallon. After the car has traveled miles, gallons of gas have been consumed.