The distance traveled varies directly with the time of travel. If
1 answer:
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The given expression is
We have to find the discriminant first . And for that, first we need to move whole terms of the left side to right side, that is
The formula of discriminant is
Substituting the values of a,b and c, we will get
And since the discriminant is greater than 0, or it is positive so we have two real roots.
Therefore the correct option is B .
We have been given that in 1983, the per capita consumption was 39.7 pounds, and in 1989 it was 47 pounds.
Let us assume t=0 corresponds to year 1980.
Hence, we can express the given information as ordered pairs as (3,39.7) and (9,47).
We can to find a linear function passing through these points. Let us first find slope of the linear function:
We can write the required linear function as:
Upon simplifying this, we get:
In order to find per capita consumption in 1995, we need to substitute t=15 in this function.
Therefore, we would expect the per capita consumption of chicken in 1995 to be 54.3.