All categories

3 years ago

Please help me quickly

Mathematics

1 answer:

s2008m [1.1K]3 years ago

3 0

A function is defined as a set of points for every x-value, there is only one y-value.
So, you can't have two y-values for every x-value.

Thus, (B) would be a relation, because x = 7 has two y-values, and as such, doesn't satisfy the condition of a function.

You might be interested in

The students lockers at a college are to be numbered consecutively form 1 to 800 using plastic digits. Each digit cost 10c. What

KIM [24]

Answer would be eight because you divide eight hundred by ten cents to get eight.

6 0

3 years ago

John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun

galina1969 [7]

Answer:

$x\geq3$

$12x+7y\leq63$

$y\geq0$

Step-by-step explanation:

If we let x be the amount of live bait and y be the amount of natural bait, Then we can come up with the following inequalities;

We are told that John would like to get at least 3 pounds of live bait. At least 3 means 3 or more. Since x represents the amount of live bait, we have;

$x\geq3$

Moreover,we are informed that;

The store sells live bait for $12 a pound and natural bait for $7 a pound. x pounds of live bait would cost 12x while y pounds of natural bait would cost 7y. The total cost would thus be;

12x + 7y

but John only has a budget of $63. This implies that he can spend $63 at most, thus;

$12x+7y\leq63$

Finally we can have our last inequality as;

$y\geq0$

8 0

3 years ago

Which transformations can be used to carry ABCD onto itself? The point of

dmitriy555 [2]

Answer:

A and B

Step-by-step explanation:

For A, y=2 is the axis of vertical symmetry, meaning a reflection would map the shape onto itself.

For B, x=3 is the axis of horizontal symmetry, meaning a reflection would map the shape onto itself.

For C, a rotation of 90 degrees would make the shape taller vertically and shorter horizontally, therefore it would be wrong.

For D, a translation two units down would move all points down, even though some would need to go up, therefore it would be wrong.

7 0

3 years ago

What is the standard form of this polynomial: 7 - x³ + 2x - 4x²?

Nadya [2.5K]

Answer:

−x^3−4x^2+2x+7

Step-by-step explanation:

3 0

2 years ago

HELP FIRST GET BRAINLYEST

weeeeeb [17]

Answer:

The median for the students is 2 and the median for the teachers is 3.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers