Question hydrog

1.1 Linear Functions - Graphs in slope-intercept, point-slope, standard form
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Hydrogen is placed inside a container and kept at a constant pressure. The graph shows the estimated volume y , in liters, of the hydrogen when its temperature is x kelvins.

  • The line slants gradually up from left to right.
  • The line begins at the approximate point (90 comma 1.3).
  • The line passes through the following approximate points:
    • (90 comma 1.3)
    • (500 comma 7)

What is the estimated volume, in liters, of the hydrogen when its temperature is 500 kelvins?

A.

0

B.

7500

C.

7

D.

5007

Hydrogen is placed inside a container and kept at a constant pressure. The graph shows the

Medium-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 C is correct. For the graph shown, the x-axis represents temperature, in kelvins, and the y-axis represents volume, in liters. Therefore, the estimated volume, in liters, of the hydrogen when its temperature is 500 kelvins is represented by the y-coordinate of the point on the graph that has an x-coordinate of 500 . The point on the graph with an x-coordinate of 500 has a y-coordinate of 7 . Therefore, the estimated volume, in liters, of the hydrogen when its temperature is 500 kelvins is 7 .

Choice A is incorrect and may result from conceptual errors.

Choice B is incorrect and may result from conceptual errors.

Choice D is incorrect and may result from conceptual errors.