The correct answer choice is
Answer:
D
Step-by-step explanation:
D is 2x bigger than A, therefore is a scaled copy.
- Domain: <u>List of x-values that apply to the line.</u>
- Range: <u>List of y-values that apply to the line.</u>
- Function: <u>A relation that has every input (x) only have 1 output (y).</u>
- Interval Notation: <u>Lists the endpoint(s) of a line</u>, and whether it's a bracket or a parenthesis on the end determines whether the endpoint is included on the line. (e.g: [17,20). 17 is included in the line, 20 is not.)
Looking at the domain, the lines will continue to stretch infinitely. <u>Therefore, the domain is </u>
Now looking at the range, the line stops at y = 1 and goes infinitely beyond it. <u>Therefore, the range is </u>
Now lastly, to figure out if the relation is a function, conduct the vertical test. Since a definition of a function is that every input (x) has only 1 output (y), taking something vertical and sliding it across the graph should show only one point vertically. Since every x-value only has one y-value in this case, <u>this relation is a function.</u>
Thickness of nickel: millimetres (mm)
height of cereal box: centimetres (cm)