The range of the function given below is the set of all positive real numbers greater than 7. F(x) = 7 + 3x A. True B. False
2 answers:
Answer:
Option A. True
Step-by-step explanation:
Range of the function is defined by the values of F(x) by plugging in the values of x in the function.
In other words when we graph the function as
x 1 2 3 4
F(x) 10 16 30 88
Then the x values define the domain of the given function and values of f(x) define the range.
Therefore, range of the given function will be all positive real numbers greater than 7.
Option A. is the answer.
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From the table, the speed of Corinne is given by
From the graph, the speed of Aretha is given by
The distance from the starting point of Corinne at any time t is given by D = 0.125t while the distance from the starting point of Aretha at any time t is given by D = 3.5 + 0.1t
Let t be the number of minutes after the start of the race when Corinne catchs Aretha, then
0.125t = 3.5 + 0.1t
0.025t = 3.5
t = 3.5 / 0.025 = 140
Therefore, the number of <span>minutes after the start of the race that Corinne will catch Aretha</span> is 140 minutes.
From the graph, the speed of Aretha is given by
The distance from the starting point of Corinne at any time t is given by D = 0.125t while the distance from the starting point of Aretha at any time t is given by D = 3.5 + 0.1t
Let t be the number of minutes after the start of the race when Corinne catchs Aretha, then
0.125t = 3.5 + 0.1t
0.025t = 3.5
t = 3.5 / 0.025 = 140
Therefore, the number of <span>minutes after the start of the race that Corinne will catch Aretha</span> is 140 minutes.