How many points need to be removed from this graph so that it will be a function

Answers

Answer 1

Answer: verteical line test
we should be able to draw a verteical (up to down) line and never hit any 2 points with the same line (line has to be paralell to y axis)

we have 3 pairs of points that are above each other (at x=-3 and x=1 and x=2)

we need to remove 3 points

Answer 2

Answer:

Answer:

3 points are needed for it to pass the vertical test

Step-by-step explanation:

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The value of a two-digit number exceeds twice the sum of its digits by 19. The tens digit is two less than the units digit. Find the number.

Answers

Answer with Step-by-step explanation:

Let the ones digit of the number be y

and tens digit of the number be x.

The tens digit is two less than the units digit.

i.e. x=y-2

The value of the number exceeds twice the sum of its digits by 19.

i.e. 10x+y=2(x+y)+19

10(y-2)+y=2(y-2+y)+19

10y-20+y=2(2y-2)+19

11y-20=4y-4+19

11y-4y=20-4+19

7y=35

dividing both sides by 7, we get

y=5

Putting value of y in x=y-2, we get

x=3

10x+y=10×3+5

=35

Hence, the two digit number is:

What is the exact volume of the sphere?. . A.. 463.01 m3. . B.. 147.456 m3. . C.. 96.46 m3. . D.. 36.868 m3

Answers

The volume of the sphere : ( r = 4.8 m )
V = 4/3 r³ π = 4/3 · ( 4.8 m )³ · 3.14 = 4/3 · 110.592 · 3.14 = 463.01 m³
Answer: A ) 463.01 m³

What is the exact volume of the sphere?

Answer: since you did not provide the sphere in order to find the volume there is no way to find the volume. In order to find the volume if a sphere we simply have to use the following formula : v = ¾(Pi)r³.

I hope it helps, Regards.

a typical stone on the lowest level of the great pyramids of egypt was a rectangular prism 5 feet long by 5 feet high by 6 feet deep and weighed 15 tons. what was the volume of the average stone? how much did one cubic foot of this stone weigh?

Answers

your total volume is 150 cubic feet and your weigh is .1 tons each cubic foot

Bryan’s mom spent $46.20 filling up her gas tank. If her gas tank can hold 12 gallons of gas, how much did each gallon cost?A. $3.48
B. $3.85
C. $3.86

Answers

Answer: Each gallon costs $3.85

Step-by-step explanation:

We know that Bryan's mom spent $46.20 on gas, and her car can hold up to 12 gallons. Therefore all we have to do is:

$46.20 ÷ 12 = $3.85

Each gallon costs $3.85

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10. what is the value of y when x=6?

Answers

The rate of change of y is proportional to y. when x=0, y=4 and when x=3, y=10 then the value of y is 12 when x =6.

The two points from the given information are (0, 4) and (3, 10).

Let us find the $slope = (10-4)/(3-0)$

=6/3

Now let us find the y intercept to write the equation in slope intercept form.

Consider the point (0, 4) to find y intercept.

Plug in the point values in slope intercept form:

4=2(0)+b

Solve for b:

b=4

The equation in slope intercept form is y=2x+4.

Now let us find the value of y when x=6.

Plug in x as 6 in the equation y=2x+4.

y=2(6)+4

y=12+4

y=16

Hence, the value of y is 16 when x is 6.

To learn more on Rate of change click:

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We know x+y=0; so, if x=6 y= -6

What is the area of a right triangle with the given vertices?
A (3, 1), B (5, 4), C (6, — 1)