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Volgvan
2 years ago
13

Please answer within 7 minutes !!

Mathematics
1 answer:
Gnesinka [82]2 years ago
3 0

Step-by-step explanation:

x = by - 3/2

x + 3/2 = by

y = x/b + 3/(2b)

now compare this to the first equation :

y = 2x + 3

the system has infinite solutions, if both equations are actually identical.

and they are only identical, if b = 1/2

y = x/(1/2) + 3/(2 × 1/2) = 2x + 3

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A student says that the graph of the equation y = 3(x + 8) is the same as the graph of y = 3x, only translated upwards by 8 unit
Wittaler [7]

Given:

A student says that the graph of the equation y = 3(x + 8) is the same as the graph of y = 3x, only translated upwards by 8 units.

To find:

Whether the student is correct or not.

Solution:

Initial equation is

y=3x

f(x)=3x

Equation of after transformation is

y=3(x+8)

g(x)=3(x+8)

Now,

g(x)=f(x+8)      ...(i)

The translation is defined as

g(x)=f(x+a)+b        ...(ii)

Where, a is horizontal shift and b is vertical shift.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

If b>0, then the graph shifts b units up and if b<0, then the graph shifts b units down.

From (i) and (ii), we get

a=8\text{ and }b=0

Therefore, the graph of y=3x translated left by 8 units. Hence, the student is wrong.

8 0
3 years ago
Simplify [0.009÷0.004]-1/2​
pantera1 [17]

Answer:

1.75

Step-by-step explanation:

0.009÷0.004-\frac{1}{2}=

2.25-0.5=

1.75

4 0
4 years ago
PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!!
Lisa [10]

Answer:

1. if x + 5 = 12, then x = 7

<u>:Subtraction property of equality</u>

2. If x + y = 20, and y = 5, then x + 5 = 20.

<u>:Substitution property of equality</u>

3. If 2x3 = 11, then 11 = 2x - 3.

<u>:Symmetric property of equality</u>

8 0
2 years ago
6а – 2а = -48<br> Need help
Alona [7]

Step-by-step explanation:

6а – 2а = -48

4a=-48

a=-12

3 0
3 years ago
Read 2 more answers
Common denominator for 5/24 and 7/18
lisov135 [29]
72 is the denominator because 24 multiplied by 3 is 72 and 18 multiplied by 4 is 72
8 0
3 years ago
Read 2 more answers
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