Ask question

Ask question

All categories

3 years ago

15

What are the domain and range of the function f(x) = 3x + 5?

1 answer:

stealth61 [152]3 years ago

7 0

Answer:

D: (-∞, ∞)

R: (-∞, ∞)

Step-by-step explanation:

All linear equations have infinite domains and ranges. This is because they are endless, they keep going on forever and ever. When you graph this function, it's a straight line with no limits. If you decide to plot f(1000000), you <em>will</em> have a definite point where the line touches x=1000000. It will go on forever.

You might be interested in

At 82°F, a certain insect chirps at a rate of 61 times per minute, and at 91°F, they chirp 124 times per minute. Write an equati

Ganezh [65]

Answer:

$y=7x-513$

Step-by-step explanation:

Let

x----> the temperature in degrees Fahrenheit

y ---->insect chirping rate in times per minute

we have the ordered pairs

(82,61) and (91,124)

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{124-61}{91-82}$

$m=\frac{63}{9}=7$

step 2

Find the equation of the line

we know that

The equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-intercept

we have

$m=7$ ---> the units are chirps per minute/degree F

take the point (82,61)

substitute and solve for b

$61=7(82)+b$

$61=574+b$

$b=-513$

substitute

$y=7x-513$

4 0

2 years ago

Help me with this please

LenKa [72]

Answer: D. 3 x 10^7

Step-by-step explanation: 9.6/3.2=3 and 10^9/10^2 is 9-2=7, so 10^7, so it would be 3 x 10^7.

7 0

2 years ago

Read 2 more answers

The ans to 3/4+2/3 when using a common denominator to add unlike fractions

pychu [463]

Answer:

17/12 = 1 5/12

Step-by-step explanation:

The common denominator of 4 and 3 is 12.

The equivalent fraction of 3/4 is 9/12.

The equivalent fraction of 2/3 is 8/12.

Their total is 17/12 (or 1 5/12).

5 0

2 years ago

What ray is between OC and OA?

coldgirl [10]

Answer:

ob is a ray between OC and OA... may it help you

3 0

2 years ago

Read 2 more answers

Patrick bought a pair of jeans which originally cost $88 at a 25% discount. How much was marked off the original price?

nekit [7.7K]

It should be 66 but im not that good at math

5 0

3 years ago

Read 2 more answers