Which function table is correct for the rule y=x-18?

Johan found that the equation –2|8 – x| – 6 = –12 had two possible solutions: x = 5 and x = –11. Which explains whether his solu

VLD [36.1K]

Answer:

It should be x=11 instead of x=-11, so he is not correct because he made a sign error.

Step-by-step explanation:

I took the test

8 0

2 years ago

A phone company offers two monthly plans. Plan A costs $25 plus an additional $0.07 for each minute of calls. Plan B costs $16 p

Blizzard [7]

Answer:

1) For 450 minutes of calling the two plans cost the same.

2) The cost when the two plans cost the same is $56.5.

Step-by-step explanation:

The cost of both plans can be modeled by linear functions.

Plan A:

$25 plus an additional $0.07 for each minute of calls.

So, for t minutes of calls, the cost is:

$A(t) = 25 + 0.07t$

Plan B:

$16 plus an additional $0.09 for each minute of calls.

So, for t minutes of calls, the cost is:

$B(t) = 16 + 0.09t$

Q1: For what amount of calling do the two plans cost the same?

This is t for which:

$A(t) = B(t)$

$25 + 0.07t = 16 + 0.09t$

$0.02t = 9$

$t = \frac{9}{0.02}$

$t = 450$

For 450 minutes of calling the two plans cost the same.

Q2: What is the cost when the two plans cost the same?

This is A(450) or B(450), since they are the same.

$B(450) = 16 + 0.09*450 = 56.5$

The cost when the two plans cost the same is $56.5.

4 0

4 years ago

The table below represents an exponential function, g, that has been vertically shifted from the parent function, f(x)= 2^x. Det

astra-53 [7]

Answer:

1. The size of shift from function f to function g is -12

2. The plot of the points of a function that is shifted only half as much as g from the parent function f is in the attached file in blue color.

Step-by-step explanation:

Parent function: f(x)=2^x

x=0→f(0)=2^0→f(0)=1

x=1→f(1)=2^1→f(1)=2

x=2→f(2)=2^2→f(2)=4

x=3→f(3)=2^3→f(3)=8

x=4→f(4)=2^4→f(4)=16

Size of the shift from function f to function g: s

s=g(0)-f(0)=-11-1→s=-12

s=g(1)-f(1)=-10-2→s=-12

s=g(2)-f(2)=-8-4→s=-12

s=g(3)-f(3)=-4-8→s=-12

s=g(4)-f(4)=4-16→s=-12

Points of a function h that is shifted only half as much as g from the parent function, f. Use the same x- values as used in the table for function:

s2=s/2→s2=(-12)/2→s2=-6

x h(x)

0 1+(-6)=1-6=-5

1 2+(-6)=2-6=-4

2 4+(-6)=4-6=-2

3 8+(-6)=8-6=2

4 16+(-6)=16-6=10

7 0

3 years ago

Mandy is thinking of a prime number that is greater than 41 and less than 47. What is many number

Sunny_sXe [5.5K]

43 is the answer hope I help

5 0

4 years ago

Read 2 more answers

A survey asked two age groups which summer sport they most preferred. The results are shown in the table below.

muminat

Answer:

6.98%

Step-by-step explanation:

To find relative frequency we divide frequency with the total number participants in that age bracket

Total number of participants age 10-19=172.....................given in the table

The frequence for those who ski at age 10-19=12---------------given in table

Relative frequency= 12/172 = 0.0697

Expressed as a percentage= 0.06976×100 =6.98%

4 0

3 years ago

Read 2 more answers