1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lutik1710 [3]
3 years ago
8

In the piece-wise function graphed below, which is the correct equation for when − 2 ≤ x ≤ 2

Mathematics
2 answers:
masya89 [10]3 years ago
6 0

Answer:

y=-1/2x+2

Step-by-step explanation:

y = mx + p

m=slope = -1/2

p= y-intercept = 2

alexgriva [62]3 years ago
6 0

Answer:

y = - \frac{1}{2} x + 2

Step-by-step explanation:

The segment for - 2 ≤ x ≤ 2 is a straight line

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

To calculate m use the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, 3) and (x₂, y₂ ) = (2, 1) ← the endpoints of the line

m = \frac{1-3}{2+2} = \frac{-2}{4} = - \frac{1}{2}

Note the line crosses the y- axis at (0, 2) ⇒ c = 2

y = - \frac{1}{2} x + 2 ← equation for - 2 ≤ x ≤ 2

You might be interested in
Suppose that 18 inches of wire costs 72 cents.
NeX [460]

Answer:

41 inches of wire will cost 164 cents.

Step-by-step explanation:

1st Method

Use proportions!

18/ 72 = 41/ c

Cross multiply

18 * c = 72 * 41

18c = 2952 divide both sides by 18

<em>c = 164</em>

2nd Method.

Find the rate of the costs. r = rate

18*r = 72

r = 4 cents/inch

Now that you've found the rate you can multiply it by 41 inches to find the cents the wire costs!

41 inch * r (cents/inch)          inches cancels out.

41 * 4 = 164

<em>164 cents</em>

7 0
3 years ago
i need help with this if you help me i will mark you as brainliest if its right please dont put the answer in a file
STatiana [176]

Answer:

more than 7

Step-by-step explanation:

4+3 = 7

)sorry if i was wrong(

5 0
3 years ago
Read 2 more answers
What's the answer to this?: divide 33 photos into two groups so the ratio is 4 to 7
velikii [3]

total units of ration = 4 +7=11

so, ratio would be (4*33)/11 : (7*33)/11

12 : 21 is the answer.

Did you understand?

5 0
3 years ago
Read 2 more answers
At the local pet store, zebra fish cost $2.00 each and neon tetras cost $2.15 each. If Ernesto bought 15 fish for a total cost o
bezimeni [28]
So first create and define your variables:
Z = amount of zebra fish
N = amount of neon tetras

Now create your equations:
2z+2.15n=31.20
z+n=15
This is your system. There are multiple methods to use but in this problem I’ll use the substitution method by simplifying the bottom equation.
2z+2.15n=31.20
z=15-n
Now I’ll plug the bottom equation into the top one.
2(15-n)+2.15n=31.20
And just solve from here.
30-2n+2.15n=31.20
0.15n=1.20
n=8
So he bout 8 neon tetras, and 15-8= 7, so he bought 7 zebra fish
6 0
3 years ago
Read 2 more answers
Write 9 decimals with one decimal place that when rounded to the nearest one round to 7
FinnZ [79.3K]
7.030124314  they all just have to be less then 5
8 0
4 years ago
Read 2 more answers
Other questions:
  • How to understand math​
    11·1 answer
  • Two towns are 6 inches apart on a map. If the scale for this map is 1 inch equals 100 miles, how many miles apart are the two to
    12·1 answer
  • Cual es el valor de 2 en 28
    7·2 answers
  • Two tanks hold a total of 55 gallons of a toxic solvent. One tank holds 4 gallons more than twice the amount in the other. How m
    11·2 answers
  • You have one last gift to wrap and you only have 150 square inches of wrapping paper. If the box measures 4 inches by 3 inches b
    5·1 answer
  • 12 POINTS: The rule is Add -5. The input is 10. What is the output?<br> NO LINKS
    6·1 answer
  • What is 3333 ×679 ÷5559​
    7·2 answers
  • What is the result of 36 divided by 9? Use the number line to find the answer.
    8·1 answer
  • Which values are solutions to the inequality square root of x is less than 8? A. 55 B. 8 C. -8 D. 4 E. 65 F. -64
    14·1 answer
  • Expand the expression 1/2(3 + 4t - 10)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!