Answer:
Quadratic: y = -x^2 + 7
Step-by-step explanation:
Diff Diff Diff in
in x x y in y Differences
-2 3
1 -1 6 3
1 0 7 1 -2
1 1 6 -1 -2
1 2 3 -3 -2
The differences in x are all 1. The differences in y are not equal, so it is not linear. The differences in the differences in y are all 2. It is quadratic.
Try: y = -x^2 + 7
x = -2:
y = -(-2)^2 + 7 = -4 + 7 = 3
You get (-2, 3) which is a given point.
Now try the same x value with the other quadratic equation.
y = x^2 + 7
x = -2:
y = (-2)^2 + 7 = 4 + 7 = 11
You get (-2, 11) which is not a given point.
Answer:
Quadratic: y = -x^2 + 7
Answer:
2 1/2
Step-by-step explanation:
1/2 minute = 1 3/4 degrees fahrenheit.
1 minute = 2 1/2 degrees Fahrenheit.
you can take 1 3/4 + 1 3/4 and get the Answer.
Answer:
Even
Step-by-step explanation:
Any two numbers you multiply together that are both even will always result in an even number. For example 48x24=1152. You can use any two even numbers and you will always get and even product.
Answer:
B
Step-by-step explanation:
Answer:
Step-by-step explanation:
Let the quotient be represented by 'Q'.
Given:
The difference of a number 'y' and 16 is 
Quotient is the answer that we get on dividing two terms. Here, the first term is 40 and the second term is . So, we divide both these terms to get an expression for 'Q'.
The quotient of 40 and is given as:
Now, we need to find the quotient when 
. Plug in 20 for 'y' in the above expression and evaluate the quotient 'Q'. This gives,
Therefore, the quotient is 10, when the value of 'y' is 20.
