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Amanda [17]
3 years ago
8

Show that f(x) = 9x - 2 is a one-to-one function.number​

Mathematics
1 answer:
GREYUIT [131]3 years ago
3 0

Answer:

upon graphing, it is linear

Step-by-step explanation:

you could set up an x-y table or you could graph it

if you graph it you'll see it's linear with a y-intercept of -2 and a slope of 9

all linear equations are functions except for vertical lines

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Arun took a taxi from his house to the airport. The taxi company charged a pick-up fee of $4 plus $4.25 per mile. The total fare
Natasha2012 [34]

Here we must write and solve a linear equation to find the number of miles that Arun traveled in the taxi. We will find that Eva traveled 11 miles.

So we know that the taxi charges a fee of $4.10 and then a plus of $0.50 per mile.

So if you travel for m miles, the cost equation is:

C(m) = $4.10 + $0.50*m

Now, we know that for Eva the total fare (total cost) was $9.60, then we need to solve:

$9.60 = C(m) = $4.10 + $0.50*m

$9.60 = $4.10 + $0.50*m

$9.60 - $4.10 = $0.50*m

$5.50 = $0.50*m

$5.50/$0.50 = m = 11

This means that Arun traveled 11 miles in the taxi.

5 0
2 years ago
What is the range of this function?
aleksley [76]
You order the y-values from greatest to least, which are 2, 2, 3, and 4. You don't need to duplicate the same y-values, so the range is {2, 3, 4}
7 0
2 years ago
Please help!!!!!! thank you
guajiro [1.7K]
I think the answer is letter C
7 0
3 years ago
The domain for f(x) and g(x) is the set of all real numbers. Let f(x) = 3x + 5 and g(x) = x2. Find g(x) − f(x).
kifflom [539]

Answer:

3x^2 + 8  

Step-by-step explanation:

Given functions,

f(x) = 3x + 8 ----(1)

g(x) = x^2 -----(2)

Since,

(fog)(x) =  f( g(x) )      ( Composition of functions )

=f(x^2)             ( From equation (2) )

=3x^2 + 8          ( From equation (1) )

Hence,

(fog)(x)=3x^2 + 8

Step-by-step explanation:

8 0
3 years ago
Divide. 110 ÷ (−5) <br><br> A:−22<br><br> B:−5<br><br> C:5<br><br> D:22
cluponka [151]

The answer is -22. :P

7 0
3 years ago
Read 2 more answers
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