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3 years ago

Determine which of the following function have a positive rate of change. Explain your answer.

Mathematics

1 answer:

olga2289 [7]3 years ago

3 0

Answer:

y = 2x - 11

Step-by-step explanation:

The "rate of change" is the coefficient of x when the function is written in this form:

y = mx + b

That coefficient will be positive when the function has a positive rate of change.

y = 2x - 11 . . . has a positive rate of change

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If a adult ticket is 5$ and a student ticket is 1$ the total money collected is 2,662 and the sold ticket is 1,198

PIT_PIT [208]

5a + s = 2662
a + s = 1198
4a = 1464
a = 366

5(366) + s = 2,662
1830 adult tickets sold

2662 - 1830 = 832
832 student tickets sold

4 0

2 years ago

Given that y is directly proportional to x^2 and that y=2 when x=3 find the value of y when x=6

Sergio039 [100]

Answer:y=4/3

y is directly proportional to x^2 is written as

$y \alpha {x}^{2}$ introducing a constant,

y=kx^2

but from the question, when y=2 , x=3 . putting it in the formula to get the value of k

$2 = {3}^{2} \times k$

2=9k . dividing through by 9 to get the value of k

 $\frac{2}{9} = \frac{9k}{9}$ 

 $k = \frac{2}{9}$ 

putting it in the general expression

 $y = \frac{2}{9} x$ 

the value of y when x=6

 $y = \frac{2}{9} \times 6$ 

 $y = \frac{4}{3}$ 

therefore the value of y when x=6 is

4/3

3 0

3 years ago

Helpppp me pleaseee

mixer [17]

Answer:

1 st questions answer is third option

while the answer of other question is 3

Step-by-step explanation:

2nd qestions explanation

put value of x=2 in equation as x-2=0 from equation

(2)^3-6(2)^2+a2+10=2

8-24+a2+10=0

2a=-18+24

2a=6

a=3

3 0

3 years ago

The difference bewteen -58 - 40

Korolek [52]

Answer:

-98

Step-by-step explanation:

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3 years ago

Read 2 more answers

2x-y-z=4, -x+2y+z=1, 3x+y+z=16. Please help

tangare [24]

1. X=2+1/2y+1/2z

2. X=-1+2y+z

3. X=16/3-1/3y-1/3z

6 0

3 years ago