AnswersKCPS Algebra I 2027Slope-Intercept Form of a Line

Slope-Intercept Form of a Line — Quiz Answers

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A leaf hangs from a branch 12 feet in the air. It falls to the ground at a rate of 0 point 2 5 feet per second. Which graph could represent the leaf’s height in feet as a function of time, in seconds, after leaving the branch?

A
Image with description A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (0, 16), (6, 8), and (12, 0).
B
Image with description A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (4, 20 ), (6, 14), and (12, 0).
C
Image with description A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (0, 12), (8, 8), and (20, 2).
D
Image with description A coordinate plane showing Falling Leaf, Time in seconds on the x-axis and Height in feet on the y-axis. A line is passing through (0, 12), (8, 10), and (16, 8).
4

Grace is comparing cell phone plans. A prepaid phone plan costs 0 point 2 0 dollars per minute and has no monthly fee. A contracted phone plan costs 50 dollars per month and 0 point 0 2 dollars per minute. How will the graphs of the monthly costs of the two cell phone plans compare where x represents minutes purchased in a month?

A
The prepaid phone plan will have a less steep line and the same y -intercept.
B
The prepaid phone plan will have a steeper line and lower y -intercept.
C
The contracted phone plan will have the same steepness and a higher y -intercept.
D
The contracted phone plan will have a steeper line and same y -intercept.
10

Which graph represents a line with a slope of negative 2 thirds and a y -intercept equal to that of the line y is equal to 2 thirds x minus 2 ?

A
Image with description A coordinate plane with a line passing through (negative 3, 0) and (0, 2).
B
Image with description A coordinate plane with a line passing through (0, 2) and (2, negative 1).
C
Image with description A coordinate plane with a line starting at (negative 2, negative 4), passing through (0, negative 2) and (2, 1).
D
Image with description A coordinate plane with a line passing through (negative 3, 0) and (0, negative 2).

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