Ask question

Ask question

All categories

4 years ago

10

which of the following represents a relation that is not a function? a. x -8 -6 7 10 y 33 31 39 33 b. x -8 -6 0 3 y 33 31 39 33

c. x -8 -6 -8 3 y 33 31 39 33 d. x 7 -6 10 -8 y 33 31 39 33

1 answer:

boyakko [2]4 years ago

8 0

X => -8 -6 -8 3
y => 33 31 39 33
is not a function because the x value -8 results to two different y-values 33 and 39.

You might be interested in

Please Help Me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

yawa3891 [41]

It doesn’t show anything?

7 0

3 years ago

Read 2 more answers

The price for US postage stamps has increased over the years. Since 1975, the price has increased from $.13-$.37 in 2005 at a ra

madreJ [45]

Answer:

Linear Equation: P = 0.008T + 0.13

Price of stamp in 2015 = $0.45

Step-by-step explanation:

From 1975 to 2005 [30 years], the price increased from 0.13 to 0.37 [0.24].

This means the rate of change (slope) is 0.24/30 = 0.008

This means Price changed (increased) by $0.008 per year.

Slope = 0.008

The y-intercept (P) is at the starting point which is at T = 1975, the price was 0.13. Hence y-intercept is 0.13

The equation of a line is given as

P = mT + b

Where m is the slope and b is the y-intercept

Now, we can write the linear model equation as:

P = 0.008T + 0.13

To find the price of stamp in 2015, we see that this is 40 years later after 1975. So we plug in 40 into T in the equation found above:

P = 0.008(40) + 0.13

P = $0.45

8 0

4 years ago

PLEASE HELP QUESTIONS AT BOTTOM <br><br> 20 POINTS

Mashutka [201]

Answer:

Slope is -2

The Y-intercept is (3,0)

The equation Is y=-2(x-3)

Step-by-step explanation:

Don't use my answer right away but when someone else answers you can compare to figure out which one is right.

7 0

3 years ago

Read 2 more answers

COLLEGE MATH!!! Please help me!

lina2011 [118]

Answer:

( $-\infty$ , 0) and (8, $\infty$ )

Step-by-step explanation:

Curve is concave downward when the second derivative is negative.

y' = $\frac{x^{2} }{x^{2} -x+4}$ , by the Fundamental Theorem of Calculus

y'' = $\frac{-x^2+8x}{\left(x^2-x+4\right)^2}$ , which has a denominator that is always positive. The numerator $-x^2+8x$ is negative when x > 0 and when x < 8. So that is when y'' is negative, and consequently when the curve y is concave down.

8 0

3 years ago

natalie guessed on the last four true or false questions on her math quiz. what is the probability that she got all four quiz qu

Verizon [17]

Each question is either true or false, so the sample space is 2, true and false, two states only.

what's the probability she got one correct, well, the favorable outcomes is 1, possible outcomes is 2, so 1/2.

what's the probability that she got all four correct, we simply multiply the probability of each,

$\bf \cfrac{1}{2}\cdot \cfrac{1}{2}\cdot \cfrac{1}{2}\cdot \cfrac{1}{2}\implies \cfrac{1}{16}\implies 0.0625\qquad or\qquad 6.25\%$

7 0

3 years ago