Which set of ordered pairs represents y as a function of x? A) {(0, 0), (−1, 2), (−1, −2), (−2, 4), (−2, −4)} B) {(0, 0), (1, 1)
valentina_108 [34]
Answer: D
Step-by-step explanation:
No two coordinates can have to same input(x) and different outputs(y)
Answer:
14.39
Step-by-step explanation:
Hola!
I just wanted to say Goodluck! :)
To answer this question you must first plug in the given value for x into your given expression.
Your given x value is a -3.
When plugged in, this leaves you with:
-3^2 + 4(-3) + 3
Next, follow PEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction) to begin to simply your expression.
Start by multiplying the parenthesis, this leaves you with:
-3^2 - 12 + 3
After that, simplify your exponents by squaring the -3. You do this by multiplying it by itself.
This leaves you with:
9 - 12 + 3 (the 9 is positive because the two negative multiplied together cancelled to make a positive)
Finally, simplify across with addition and subtraction to get your final answer.
This results in:
0
So, when x = -3 in this expression, the answer is 0.
I hope this helps! :)
The value fo k is
. This is because c, the constant, is the y-intercept. The graph shows where the line intersects the y-axis, which is -3. So you substitute -3 with c. To find the value of k, plug in the coordinate with the x and y values and then solve for k.
