2 years ago

How do you find the domain and range of a quadratic function?

Mathematics

1 answer:

elena-s [515]2 years ago

7 0

Answer:

the domain is always all real numbers and you find the range by finding the vertex which is f(-b/2a)

Step-by-step explanation:

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solve the eqution 9.95+0.30s=c c is the amount of dollars a website charges for downloading songs s stands ffor number of songs

lutik1710 [3]

9.95 + 0.30s = C

9.95

9.95 + 10.5 = C

C = 20.45

hope this helps!

~LEAN~

5 0

2 years ago

Fine the slope of the line through each pair of points . (-8,-20),(5,2)

kozerog [31]

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (-8, -20) and (5, 2). Substitute:

$m=\dfrac{2-(-20)}{5-(-8)}=\dfrac{22}{13}$

Answer: The slope is $\dfrac{22}{13}$

7 0

3 years ago

Read 2 more answers

Please help me understand this question

kenny6666 [7]

Answer:

Make the picture clearer and bigger

Step-by-step explanation:

4 0

2 years ago

Denise makes three times as many chocolate cupcakes as vanilla cupcakes. She also makes three dozen strawberry cupcakes. If Deni

slamgirl [31]

Answer:

6 dozens

Step-by-step explanation:

Vanilla, v = x

Chocolate, c = 3x

Strawberry, s = 3 dozens = 36

Total cupcakes = 132

Hence,

x + 3x + 36 = 132

4x = 96

x = 96 / 4

x = 24

Chocolate = 3 * 24 = 72

Dozens of chocolate = 72 /12 = 6 dozens

7 0

2 years ago

Walter walked 15.5 block from his house to work. It took him 35 minutes. What is his rate in blocks per hour

Sonbull [250]

For this case we first calculate the rate in blocks per minutes.
rate = (15.5) / (35) = 0.443 blocks per minutes.
Then, we can go to blocks per hour.
Remember: 1h = 60min.
rate = 0.443 * (1/60) = 0.00738 blocks per hour.
answer
his rate in blocks per hour is 0.00738 blocks per hour.

6 0

2 years ago