the first picture number 1 is a function
the second one the third one
but I'm not sure
Answer: 4/3 or 1 1/3 feet
Step-by-step explanation:
12 months make a year.
Since the shoreline is eroding at 1/3 foot per 3 months, for a year it will be:
1/3 × 12/3 = 4/3 or 1 1/3 feet
In functions, two x's cant exist. It will create an undefined (straight down) line.
To figure out if there it is a function or not from a graph, do the pencil test. Take your pencil (or finger) and drag it across the graph vertically. If your pencil hits two points at once (on the same x-axis, or straight up/down), its not a function.
Therefore, both tables are not a function, or B.
Answer: m = - 1/2
Step-by-step explanation: Use the Slope-Intercept form, y=mx+b to find the slope of m.
Hope this helps you out! ☺
