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3 years ago

Find the range of f(x) =2x-6 for the domain (-2,1,5,8)

Mathematics

2 answers:

Effectus [21]3 years ago

3 0

Answer: range: (-10,-4,4,10)

Step-by-step explanation: range is y value and domain is x value

f(x) will be ur y

in place of x put the value of domain

example:

f(x) =2x-6

y=2(-2)-6

= -10

2) y=2[1]-6

= -4

like that do the rest of the working to find ur range.

Simora [160]3 years ago

3 0

Answer:

the range is : (-10,-4,4,10)

Step-by-step explanation:

calculate :

f(-2) = 2(-2) -6 = -10

f(1) = 2(1) -6 = -4

f(5) = 2(5) -6 = 4

f(8) = 2(8) -6 = 10

the range is : (-10,-4,4,10)

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Read 2 more answers

A population of bacteria is initially 6000. After three hours the population is 3000. If this rate of decay continues, find the

serious [3.7K]

Answer:

The equation is $A=6000e^{-0.23t}$ at a rate of -23%.

Step-by-step explanation:

Decay can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it decays by using t=3 hours and A=3000. This means $A_0=6000$ in this context.

$A=A_0e^{rt}\\3000=6000e^{r(3)}$

$0.5=e^{(24.5)r}$

After substituting, we divided by 6000 to each side to get 0.5 on the left. Now to solve for r, we will take the natural log of both sides and use log rules to isolate r.

$ln 0.5=ln e^{(3)r}\\ln 0.5=3r (ln e)\\\frac{ln0.5}{3} =r$