Question argon-

1.1 Linear Functions - Graphs in slope-intercept, point-slope, standard form
0:00

Argon is placed inside a container with a constant volume. The graph shows the estimated pressure y , in pounds per square inch psi, of the argon when its temperature is x kelvins.

  • The line slants gradually up from left to right.
  • The line begins at the approximate point (90 comma 1.8).
  • The line passes through the following points:
    • (300 comma 6)
    • (450 comma 9)
    • (600 comma 12)

What is the estimated pressure of the argon, in psi, when the temperature is 600 kelvins?

A.

6

B.

12

C.

300

D.

600

Argon is placed inside a container with a constant volume. The graph shows the estimated pressure

Easy-difficulty · SAT Math · Linear Functions — Graphs in slope-intercept, point-slope, standard form. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice B is correct. For the graph shown, the x-axis represents temperature, in kelvins, and the y-axis represents the estimated pressure, in pounds per square inch psi. The estimated pressure of the argon when the temperature is 600 kelvins can be found by loing the point on the graph where the value of x is equal to 600 . The graph passes through the point 600,12. This means that when the temperature is 600 kelvins, the estimated pressure is 12 psi.

Choice A is incorrect. This is the estimated pressure, in psi, of the argon when the temperature is 300 kelvins, not 600 kelvins.

Choice C is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect. This is the temperature, in kelvins, of the argon.