Answer:
I got you
Step-by-step explanation:
2 time 5 times 2 is 20. This minus 2 times 5 is 10 plus 3 is 13.
For this question you need to be familiar with the basic shapes of odd and even functions; looking at the graphs, we can see that the first two are clearly odd functions and the second two are even functions.
For odd functions, an easy way to tell if it's negative or positive is to see which direction the end of the function on the right side heads in; for the first graph we can see that at x > 1 the gradient is negative, and so the leading coefficient is negative, whilst for the second graph at x > 1 the gradient is positive and so the leading coefficient is positive.
For even functions it would be the same, so for the third graph we can see that the graph has a positive gradient to the right and so the leading coefficient is positive and then for the fourth graph we can see that the graph heads downwards to the right and so the leading coefficient is negative.
So the answers would be:
First graph: The degree of function is odd and the leading coefficient is negative
Second graph: The degree of the function is odd and the leading coefficient is positive
Third graph: The degree of the function is even and the leading coefficient is positive
Fourth graph: The degree of the function is even and the leading coefficient is negative
It is however worth remembering the basic graph of each function that you learn so that these things will become easily identifiable ;)
Answer:
find out your boss isnt paying you fairly
Step-by-step explanation:
Answer:
Uhm anything that includes minus, times, divide, subtract, and equal would be a equation
Step-by-step explanation:
Answer:
Put the equation in standard form by bringing the 4x + 1 to the left side.
7x2 - 4x - 1 = 0
We use the discriminant to determine the nature of the roots of a quadratic equation. The discriminant is the expression underneath the radical in the quadratic formula: b2 - 4ac.
b2 - 4ac In this case, a = 7, b = -4, and c = -1
(-4)2 - 4(7)(-1)
16 + 28 = 44
Now here are the rules for determining the nature of the roots:
(1) If the discriminant = 0, then there is one real root (this omits the ± from the quadratic formula, leaving only one possible solution)
(2) If the discriminant > 0, then there are two real roots (this keeps the ±, giving you two solutions)
(3) If the discriminant < 0, then there are two imaginary roots (this means there is a negative under the radical, making the solutions imaginary)
44 > 0, so there are two real roots