4-2 Lesson

In a relationship between variables, how does the dependent variable behave?

• It changes independently of other variables.

• It changes in response to the independent variable.

• It determines the changes in the independent variable.

• It remains constant regardless of other variables.

What is the perimeter of a single rectangle with a width of 1 unit and a length of 6 units?

• 12 units

• 13 units

• 14 units

• 16 units

Based on the pattern observed, what would be the perimeter of a figure made of 5 rectangles?

• 20 units

• 21 units

• 22 units

• 24 units

Which equation correctly represents the relationship between the number of rectangles (x) and the perimeter (y)?

• y = x + 12

• y = 2x + 6

• y = 2x + 12

• y = 6x + 2

What defines a mathematical function?

• A relationship that pairs each input value with exactly one output value.

• A relationship where each output value has exactly one input value.

• A relationship that pairs each input value with multiple output values.

• A relationship that always results in a straight line when graphed.

Which characteristic describes a linear function?

• Its graph is always a vertical line.

• Its graph is a nonvertical line or part of a nonvertical line.

• It pairs each input with multiple outputs.

• It represents a geometric relationship with varying rates of change.

In the camera memory problem, how much memory is used for each photo taken?

• 1 megabyte

• 2 megabytes

• 3 megabytes

• 4 megabytes

What is the equation that represents the amount of memory (y) left on the camera chip after taking 'x' photos, given an initial memory of 512 MB and each photo using 3 MB?

• y = 3x + 512

• y = 512 - 3x

• y = 512x - 3

• y = 3x - 512