Mathematics, 04.08.2019 23:30 mstahuggoo6102

Are all lines function? explain. why does the vertical line test work? how can you determine whether a relation is a function when the relation is represented as a set of ordered pairs? how can you evaluate a function for a given value when the function is represented as a graph? answer all these questions in order from 1 to 4. this is not part of the question, just letting you know.

Answers: 2

Show answers

Answers

1. Not all lines represent functions. A vertical line, for example, does not have a defined slope due to division by zero. Otherwise, all straight lines represent functions.

2. If a relationship shows two or more y-values for any given x-value, then that relationship is NOT a function. If you graph such a relationship and then draw a vertical line thru your graph, and see that the line intersects the graph more than once, you know your rel. is not a function.

3. Refer back to #1. If any one x-value is associated with more than one y-value, the relationship is NOT a function.

4. Draw a vertical line thru the input (x-) value at which you wish to evaluate the function. What is the y-value at the point of intersection of this line and the graph?

Answer from: dondre54

All lines are not functionsa function will not have any repeating x values. it can have repeating y values, just not the x ones.

To determine if ur line is a function, there is the vertical line test. if u run a vertical line through the line on the graph, if ur line on the graph touches the vertical line more then once, it is not a function.

if u get a set of ordered pairs, such as { (2,3),(3,4),(4,5),(6,7)}...to determine if this is a function just by looking at it, just look at ur x values. If all ur x values are different, then it is a functionso this one is a function.

But...{ (2.3), (2,4), (3,4), (4,5)}...this is not a function because it has 2 x values that are the sameu have two x values that are both 2.

example :lets say u have a line on ur graphand u get something like
h(-4)this is basically saying x = -4so u would look at ur graph and find the point where x is -4 and see what y equals.
I am not sure how to explain this oneso ur h(-4) would be equal to the y value of the (-4,y) point

Answer from: Quest

For the first question the answer is a, for the second c, for the third d, for the 4th b, for the 5th a

Answer from: Quest

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

Another question on Mathematics

Mathematics, 21.06.2019 21:00

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)

Answers: 2

Answer

Mathematics, 21.06.2019 22:10

Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1

Answers: 3

Answer

Mathematics, 21.06.2019 22:30

What is the graph of the absolute value equation ? y=|x|-5

Answers: 1

Answer

Mathematics, 22.06.2019 02:00

Write the component forms of vectors u and v, shown in the graph, and find v − 2u. u= (< -3, -2> , < -3, -1> , < -2, -2> , < -2, -1> ) v= (< -5, 1> , -4, 0> , < 0, -4> , < 1, -5> ) v-2u= (< 5, 3> , < 0, 4> , < 4, 0> , < 5, -3>

Answers: 3

Answer

You know the right answer?

Are all lines function? explain. why does the vertical line test work? how can you determine whethe...

Questions