What is the domain of f(x)?O {xl-4O {xl-3 < x < 4}
O {x|1 < x < 4}
O {x|2 < x < 4}

The statements which are true of the function; f(x) = 3(2.5)^x and there explanations are below;

1. The function is exponential;Traditional to every exponential function is that the independent variable is usually an exponent of a constant. Hence, we can conclude the function is an exponential function.
2. Yes,the function increases by a factor of 2.5 for each unit increase in x. Hence, the slope of the function is; 2.5.
3. The domainof the function is all real number, because, the value of y is defined for all real number values of x.

Read more on exponential functions;

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This is an exponential function since the x is in the exponent's place instead of in the place of a "regular" variable. The first statement is true.

The initial value of this particular function is 3 (the other number is the multiplier), so choice 2 is NOT true.

The function increases by its multiplier, which is 2.5, so statement 3 is true.

The equation allows us to enter any x value we want to determine the y, so the domain is in fact all real numbers. So, this statement is also true.

If you were to graph this on a calculator, you would see that the range, the "allowed" y values for our function, do not touch or ever drop below the x-axis. That means that the range is all numbers greater than 0. So that statement is false. No matter what value we pick for x, we will NEVER get back a negative y value or that y = 0. For example, if x = 0, y = 3; if x = -5, y = .03; if x = -10, y = .0003; if x = 5, y = 292.97; if x = -100, . Y will never be equal to 0 or less than 0.

Answer:

Symmetric property of equality is illustrated by the following statement.

if hxa =rgi,

then;

rgi =hxa

Step-by-step explanation:

Symmetric property of equality states

if x = y

then

y = x

As per the statement:

If

by symmetric property of equality;

Therefore, symmetric property of equality is illustrated by the following statement.

Answer:

Symmetric

Step-by-step explanation:

sorry for being 3 years late

Answer:

  D)  3x − 2y < 7

Step-by-step explanation:

We note that the x- and y-intercepts are about 2.3 and -3.5, respectively.

In "intercept form," the equation of the line can be written ...

  x/x-intercept +y/y-intercept = 1

Using the given intercepts, this is ...

  x/2.3 +y/(-3.5) = 1

The answer choices suggest that we should multiply this by 7. When we do, we get ...

  3x -2y = 7 . . . . the equation of the boundary line

__

The next trick is to figure the comparison symbol. We note that x-values are less than those on the line, and y-values are greater than those on the line. It is convenient to consider the term with a positive coefficient, so we don't get confused with minus signs and reversed comparisons.

As we said, x-values are less than those on the line, so the shaded area is ...

  3x -2y < 7 . . . . matches choice D

Answer:

D)  3x − 2y < 7

Step-by-step explanation:

Took the test and got it right :)