Answer:
The y-intercept changes from (0, 3) to (0, -3)
Step-by-step explanation:
The y-intercept refers to the point where the graph of a function crosses or intersects with the y-axis. At this point, the value of x is usually 0.
Substitute x = 0 in both equations to determine how the y-intercept changes;
The original equation is given as y = 4x + 3,
when x = 0; y = 4(0) + 3 = 3
The y-intercept is thus (0, 3)
The new equation is given as y = 4x - 3
when x = 0; y = 4(0) - 3 = -3
The y-intercept is thus (0, -3)
Therefore, the y-intercept changes from (0, 3) to (0, -3)
10000 different phone numbers are possible for a particular prefix if repetion of digits is allowed
5040 different phone numbers are possible for a particular prefix if repetion of digits is not allowed
<em><u>Solution:</u></em>
Given that,
A seven digit phone number consists of a three-digit prefix followed by four digits
We have to find the different phone numbers are possible for a particular prefix
For a paricualr prefix, there are four digits
Total numbers from 0 to 9 are 10
Therefore,
Different ways for phone number for particular prefix:
If repetition is allowed:
Different ways = 10 x 10 x 10 x 10 = 10000 ways
If repetition is not allowed then:
Different ways = 10 x 9 x 8 x 7 = 5040 ways
Greetings,
<em>I hope you and your family are staying safe and healthy! </em>
Answer: x = -1 and y = 3
Step-by-step explanation:
Let's start by solving 
for 
Add 5y to both sides
Now we need to divide both sides by 10
That's not the answer for x. We are not done yet :)
Now we need to substitute 
for
Now we need to simply both sides
Now we need to add 25 to both sides
We have the valuee for y! Now we need to find the value for x
To find the value of x, we need to substitute 3 for y in:
Therefore,
The answer is x = -1 and y = 3
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Answer:
$200
Step-by-step explanation:
he gave 40% to his bro and spent 10% 40+10=50 so he spent 50%
