3 years ago

What is the difference between integers and real numbers?

1 answer:

galina1969 [7]3 years ago

5 0

Integers are positive and negative whole numbers no fractions or decimals.
Real numbers do have fractions and decimals that integers do not.

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Consider the function f(x)= 1-|x-1|+|x+1| for -3<x<3. Recall that the absolute function can be represented as a piece wise

Kruka [31]

By the definition for the absolute value,

$|x-1|=\begin{cases}x-1&\text{for }x\ge1\\-(x-1)&\text{for }x$
$|x+1|=\begin{cases}x+1&\text{for }x\ge-1\\-(x+1)&\text{for }x$

So for the compound function $f(x)=1-|x-1|+|x+1|$ , there are three intervals to consider. What happens when $x$ ? when $-1\le x$ ? when $x\ge1$ ?

You have

$f(x)=\begin{cases}1-(-(x-1))+(-(x+1))=-1&\text{for }x$

8 0

4 years ago

PLEASE help with these math questions

kaheart [24]

1. C
2. A
3. D
4. 62/25
5. 4/33

By the way it is not fair. posting 5 sums for just 7 points. :)

anyway, if it helped u
do click thx.

3 0

4 years ago

Line j has an equation of y = x − 6.

chubhunter [2.5K]

Answer:

the answer is y = x-1

Step-by-step explanation:

y-y1 = m(x-x1)

y-9= 1×(x-10)

y=x-1

6 0

3 years ago

Here is a system of linear equations:

marysya [2.9K]

5x+4y=16 y=3/5x-3

y=mx+b <------ slope-intercept form

5x+4y=16
-5x -5x
============
4y=-5x+16
--------------
4
============
y= -5/4+4

Slope is -5/4
y-intercept is 4

y=3/5x-3

slope is 3/5
y intercept is -3

I can't do the graph but I'm sure you can figure it out!
Hope I helped.

3 0

3 years ago

I need help I don’t understand the problem#5

vampirchik [111]

the answer is A) 176

7 0

3 years ago

Read 2 more answers