Determine which ordered pair is a solution of y= x+2/5 Wouldn’t it be (0, 2/5)?

Mathematics

2 answers:

mario62 [17]3 years ago

6 0

Answer:

(-1,2/5) i'm pretty sure

Step-by-step explanation:

Alexeev081 [22]3 years ago

6 0

Answer:

(2, 2 2/5)

Step-by-step explanation:

(0, 2/5) is correct, and since the slope is 1, adding any number to both the x and the y would still make it a solution.

In this case, you could add 2 to both x and y, resulting in (2, 2 2/5).

Hope it helped, and if it did, could you consider giving me brainliest? :)

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Which exponential function is represented by the values in the table?

Goryan [66]

Answer:

$\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x$

Step-by-step explanation:

<u>Exponential Function</u>

The exponential function can be written with the general equation:

$f(x)=A\cdot r^x$

Where A is the value when x=0 and r>0 is the ratio. If r is greater than 1, the function is increasing, if r is less than 1, the function is decreasing.

The table shows the relation between values of x and values of the function y. Note that as x increases (one by one), y decreases with a ratio of 1/2. Only the last two choices have ratios of r=1/2. We only have to test which one of them has the correct value of y=4 when x=0.

Substituting in the third function:

$\displaystyle f(x)=4\cdot\left(\frac{1}{2}\right)^x$

$\displaystyle f(0)=4\cdot\left(\frac{1}{2}\right)^0$