All categories

2 years ago

Jacob says the following is not a function:

Mathematics

2 answers:

lana66690 [7]2 years ago

6 0

Answer:

he is not correct cuz none of the x factors repeat :)

zzz [600]2 years ago

3 0

Answer:

He is wrong

Step-by-step explanation:

for it to not be a function the x coordinates would have to repeat at some point

ex if it was not a solution:

(1,5)(1,8) (3,7) (5,9) (7,11)

as you can see the 1 repeats which makes it not a function but because your doesn't have anything repeating then its a function

You might be interested in

Which equation represents a nonlinear function? y=−85x+19.4 y = − − 8 5 x + 19.4 y=−12x2−7 y = − − 1 2 x 2 − − 7 y=x4+x y = x 4

Pavel [41]

Answer:

The answer is below.

Step-by-step explanation:

The options are not clear. I would solve a similar question.

A linear function is a function in the form:

y = mx + b; where y and x are variables, m is the slope and b is the y intercept.

From the options:

a) x(y - 5) = 2

xy - 5x = 2. Since the equation is not in the form of y = mx + b, hence it is not a linear function. It is a nonlinear function.

b) y - 2(x + 9) = 0

y - 2x - 18 = 0

y = 2x + 18. The equation is in the form of y = mx + b, hence it is a linear function.

c) 3y + 6(2 - x) = 5

3y + 12 - 6x = 5

3y = 6x - 7. The equation is in the form of y = mx + b, hence it is a linear function.

d) 2(y + x) = 0

2y + 2x = 0

2y = -2x. The equation is in the form of y = mx + b, hence it is a linear function.

4 0

2 years ago

(Ch. 6, p. A man bought a trampoline for his children to use. The trampoline has a diameter of 17 feet. If the man wishes to put

iVinArrow [24]

Diameter D of the trampoline = 17 feet

The circumference C, of the trampoline is calculated by the formula:

$C=\pi D$

Put D = 17 feet, π=3.14

$\begin{gathered} C=3.14\times17\text{feet} \\ C=53.38\text{feet} \end{gathered}$

The cirucmference o

8 0

7 months ago

Find the measure of angle A. 66° x +49 x+83

liubo4ka [24]

Step-by-step explanation:

Since , internal sum of angle of triangle is 180°

So,

66 + x +49 + x+83 = 180

or, 198 + 2x = 180

or, 2x = 180 -198

or, 2x = -18

hence, x = - 9

Now angle A = x + 49

= (-9) + 49

= 40

Hence measure of angle A is 40°.

8 0

2 years ago

Read 2 more answers

The amount of money Mr. Brust made this summer was equal to the $55 he started with and the $15 for every lawn he mowed while st

earnstyle [38]

Let's start by declaring our varibles.

x = number of lawns Mr. Brust mowed

y = total amount of money Mr. Brust made

Let's create our equation.

y = 15x + 55

For part b, we can plug 800 in for y.

800 = 15x + 55

Subtract 55 from both sides.

745 = 15x

Divide both sides by 15

50 = x. Note, I rounded the answer to the nearest integer.

For part c, we can plug 13 in for x.

y = 15(13) + 55

Simplify the right side of the equation.

y = 250

8 0

2 years ago

What are the vertical asymptotes of f(x) = 10/ x^2 - 1

Veronika [31]

Vertical asymptotes ares found where the function is undefined. f(x) is undefined when the denominator equals zero:

x^2-1=0

*Add 1 to both sides*

x^2=1

*Take the square root of both sides*

x=+/-1

There are vertical asymptotes at x=-1 and x=1.

Hope this helps!!

8 0

3 years ago