What is the slope of the line represented by the equation y = –x + ? – –
2 answers:
You might be interested in
If y = 6 when x = 8, then value of "x" when y = 9 is equal to 12
<u>Solution:</u>
Given that , In a certain function, y varies directly with x
And x = 8 when y = 6,
We have to find what will be the value of x when y = 9
Now, from the given information,
where c is the proportionality constant
Hence, x value is 12 when y value is 9
Area =
Therefore, area of square is 88.36 cm².
1. We are asked to simplify the expression : 
2. First thing we can do is to flip the second expression, so make the division a multiplication, and also factorize 3 in the numerator and 12 in the denominator of the second expression as follows:
3. Now factorize each of the quadratric expressions using the following rule:
when we want to factorize
, we look for 2 numbers m and n, whose sum is a, and product is b:
for example: in
, the 2 numbers we are looking for are clearly -5 and 4, because (-5)+4=-1, (-5)*4=-20, so we write the factorized form (x-5)(x+4)
Now apply the rule to the whole expression:
4. Simplify equal terms in the numerator and denominator:
we get:
Answer:
2. First thing we can do is to flip the second expression, so make the division a multiplication, and also factorize 3 in the numerator and 12 in the denominator of the second expression as follows:
3. Now factorize each of the quadratric expressions using the following rule:
when we want to factorize
for example: in
Now apply the rule to the whole expression:
4. Simplify equal terms in the numerator and denominator:
we get:
Answer: