Answer:
A quadratic function can only have one y-intercept. The y-intercept is also called a zero of the function. The y-intercept is located at the point where the value of y is 0.
Step-by-step explanation:
Answer:
B. (-1, 2)
Step-by-step explanation:
A piecewise-defined function may be discontinuous at the boundaries of its pieces, and it may be discontinuous if it is undefined anywhere within one of its pieces. So, you need to check all of these possibilities.
The boundary locations are x = -1, 0, and 4.
At x=-1, the function has the value e^-1 on one side of the boundary and -1 on the other side, so is discontinuous at x=-1. This rules out choice A.
At x=0, the function has the value 0 on both sides of the boundary, so it is continuous there.
At x=4, the function has the value 10 on one side of the boundary and the value cos(12) on the other side, so is discontinuous at x=4.
In the piece between 0 and 4, the function is defined as 5x/(x-2), so will be undefined where the denominator is zero, at x=2.
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In summary, the function is discontinuous at x=-1, x=2, x=4. So, any interval containing these x-values can be ruled out. The only remaining possibility is ...
B. (-1, 2)
Two points are just two points. They have no slope/intercept form. But the line that joins them has.
Answer:
Question #2: Option B, b
Question #3: Option A, x(2x - 6y)
Step-by-step explanation:
<u>Question #2</u>
The GCF of b^2 and b is b
Answer: Option B, b
<u>Question #3</u>
The answer is Option A, since it distributes as 2x^2 - 6xy
Answer: Option A, x(2x - 6y)
Answer:
The answer is option 3.
Step-by-step explanation:
Option 3 is correct because it has parentheses around 40 - x, but not the cube itself or the 3rd power if you didn't know what I meant. Anyway, the reason this is correct is because if you look at any order of operations, you will notice that parentheses always comes before powered numbers, so if you were to choose, say option 2, it would be a completely different answer than option 3, not to mention wrong also.
