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joja [24]
3 years ago
12

Is y= x^2-4 a function?

Mathematics
1 answer:
mamaluj [8]3 years ago
6 0

Answer:

yes. it has a x and a y plus it also contains a =

Step-by-step explanation:

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At bike shop x it costs $2.75 per hour plus a $3.00 deposit to rent a bike. at bike shop z it costs $1.75 per hour plus a $7.00
dem82 [27]

Answer:

Multiply the rate per hour by the number of hours (n) and add the deposit.

A)

Bike shop x: c = 2.75n + 3.00

Bike shop z: c = 1.75n + 7.00

B) to find when they will cost the same set the equations equal to each other and solve for n:

2.75n + 3.00 = 1.75n + 7.00

Subtract 3 from each side:

2.75n = 1.75n + 4.00

Subtract 1.75n from both sides:

1.00n = 4.00

Divide both sides by 1:

n = 4 hours

6 0
3 years ago
Read 2 more answers
HELP IM LITERALLY SOBBING
Vika [28.1K]

Answer: Y= 8x + 2.8

Step-by-step explanation: slope is 8 (think rise over run) and y-intercept seems to be 2.8, heh hope that helped

3 0
3 years ago
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1 1/4 + ( 3 2/3 + 5 3/4)
Dmitrij [34]

Answer:

10.6

10+ 2/3

Step-by-step explanation:

6 0
4 years ago
Write the vertex form of the equation of the parabola that has a vertex of (-6,-5) and passes through the point (-8,6)
Anastaziya [24]

Answer:

Step-by-step explanation:

Find the parabola through  ( − 8 , 6 )  with vertex  ( − 6 , -5 ) .  

Standard Form:  y = − 11 /4x ²− 44 x − 170

Vertex Form:  y = − 11 /4 ( x + 8 ) 2 + 6

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7 0
3 years ago
5/2divided by 3/4=24/x
Arada [10]

Answer:x= 36/5

decimal: x=7.2

mixed number: x= 7 1/5

Step-by-step explanation: solve for X by cross multiplying.

4 0
4 years ago
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