Which of the following is a solution of y - x < -3? (6, 2) (2, 6) (2, -1)

2 answers:

8 0

(2,6) because if you substitute the x and y in the equation with the x and y from the ordered pair and solved, you’ll see that it should look like -4<-3, and that answer is a true answer

Snowcat [4.5K]3 years ago

5 0

Personally I'd solve this inequality for y first: y < x-3.

That immediately eliminates (6,2) and (2,6).

Starting from y < x-3 and letting 2 sub for x and -1 sub for y, is the following true or false?

-1 < 2 -3 NO. -1 < -1 is false. Was there a fourth answer choice?

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7 0

4 years ago

To determine whether the inverse of a function is a function you can perform the horizontal line test.

iris [78.8K]

Answer:

$\boxed{\text{TRUE}}$

Step-by-step explanation:

If a horizontal line intersects the graph of a function in all places at exactly one point (the horizontal line test), the inverse of the function is also a function.

For example, the inverse of a hyperbola (like ƒ(x) =1/x) is a function, because every horizontal line intersects with the graph at exactly one point.

However, the inverse of a parabola (like ƒ(x) = x²) is not a function, because a horizontal line intersects with the graph at two points.