1-determine whether the function / is one-to- one:
1 answer:
Answer:
is a function but not one-to-one.
Step-by-step explanation:
<em>Please refer to my Answer from this Question to know how to Determine whether a Relation is a Function or not: <u>brainly.com/question/2476082</u></em><em>9</em>
This is a function because time can only move forward and there can't be different numbers of people, , at the same time,
. The only thing that is possible is we can have the same number of people,
, at the different times,
. So, this isn't one-to-one but many-to-one.
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We know that x-axis represents weight of dog food in pounds
AND y-axis represents Total cost in dollars
AND a line connects (0,0) and (10,5)
Based on the information we can plot a graph that can be seen in the attached image. The line represents y =
Now, let's look at each of the statements to see which is true and which is false:
A) Point (0, 0) shows the cost is $0 for 0 pound of dog food.
(0,0) indicates that the cost for 0 pound dog food is $0. Hence, this statement is true.
B) Point (1, 0.5) shows the cost is $1.00 for 0.5 pound of dog food.
(1,0.5) indicates that the cost for 1 pound dog food is $0.5. Hence, this statement is false.
C) Point (2, 1) shows that 2 pounds of dog food cost $1.
(2,1) indicates that the cost for 2 pounds dog food is $1. Hence, this statement is true.
D) Point (4, 2) shows the cost is $4 for 2 pounds of dog food.
(4,2) indicates that the cost for 4 pounds dog food is $2. Hence, this is false.
E) Point (10, 5) shows that 10 pounds of dog food costs $5
(10,5) indicates the cost for 10 pounds dog food is $5. Hence, this is true.
