Answer:
function is a relation between sets that associates to every element of a first set exactly one element of the second set.
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Answer:
It is A.
Step-by-step explanation:
In function A we see that there are 2 ordered pairs with value 2 in the first position with y values 6 and 2. So this is not a function.
A relation is a function, if and only if, the x- values do not repeat in a given set.
Answer:
43 miles/hr
Step-by-step explanation:
Use a conversion factor from km to miles while keeping track of your units:
70 km/hr x 0.62 miles/km = 43 miles/hr
