Question

Help! I don't know what to do please show me a example for each of them please

Answer 1

Help

Answer 2

@jim_thompson5910 can u please help me again if u dont mind? can u show me an example for each, i am pretty sure after that i will get the point how to do the others thx

Answer 3

Problem 13

"3 units up" means that the y coordinate will change. The x coordinate of each point stays the same. Simply add 3 to each y value in the table to get the new updated table.

the first y value of 3 turns into 3+3 = 6
the second y value of 1 turns into 1+3 = 4
the third y value of -2 turns into -2+3 = 1
the fourth y value of -1 turns into -1+3 = 2

Answer 4

problems 14 and 15 are similar. For 14, you'll subtract 1 from each y value. For 15 you'll add 4 to each y value

Answer 5

thank you what about 16? @jim_thompson5910

Answer 6

Can you apply any of what you've just seen / learned to attacking #16?

Answer 7

The approach you need to take is exactly the same, other than that you have to deal with fractions in #16.

Answer 8

@mathmale can i use what ever number i want for y? then subtract it?

Answer 9

No. Look at the four given f(x) values, and then subtract 2/3 from each one, to form a new table.

Answer 10

they dont give u a table

Answer 11

On the contrary! You shared a table that was given to you at the beginning.

Answer 12

where?

Answer 13

i am so lost

Answer 14

http://assets.openstudy.com/updates/attachments/57e46b1be4b0dc03c974babd-marcoreus11-1474587429476-image.jpeg

You provided this illustration yourself.

Answer 15

yeah i know but those pictures are for #13 14 and 15

Answer 16

we are doing 16

Answer 17

@MarcoReus11 is there something below #16 that is cut off?

Answer 18

You'll need to be more specific about what you want help with. You didn't tell me you were moving on to a new problem.

Answer 19

no @jim_thompson5910

Answer 20

If you begin with y=f(x) and the translation is "2/3 unit down," then the new function is represented by y=f(x)-(2/3).

Answer 21

Would you try #17 now, please?

Answer 22

y=f(x)+(4)

Answer 23

and my bad we are making a equation i misread the direction thought it said make a table

Answer 24

y=f(x)+2

Answer 25

that's fine. You don't actually need the parentheses, but the parentheses don't hurt.

Answer 26

Yes, your most recent input is correct for #18.

Answer 27

Any further questions about this problem?

Answer 28

no and thank you so much and showing me what i missed

Answer 29

My pleasure!

Answer 30

wait i have another problem that says translate 2 units left, 7 unit down can u check if i did this right using y=f(x)

Answer 31

y=f(-2)-7

Answer 32

Your -7 for "7 units down" is fine. Regarding a horiz. translation to the left, try this:

y=f(x+2)-7 You cannot disregard or drop the x.

Answer 33

oh okay but if it said 2 units right it would be y=f(x-2)-7 right?

Answer 34

just making sure cause i heard a teacher mentioning something about it being opposite

Answer 35

Yes, you're correct. If you begin with y=f(x) and wish to translate the graph 2 units to the right and 7 units down, then you're looking at y=f(x-2)-7.

Answer 36

how would i reflect it across the x axis?

Answer 37

translated 5 units right, reflected across the x axis

Answer 38

i understand the translate 5 units right

Answer 39

If you begin with y=f(x), putting a neg sign in front of f(x) will do that.
If you begin with y=f(x) and translate the graph 5 units to the right, then you get y=f(x-5). Writing the "-" symbol in front of that will reflect the shifted graph in the x-axis.

Answer 40

Remember, you can check your work by actually writing out specific formulas.

Graph y=f(x)=x^2. Then graph y=f(x-5)=(x-5)^2. Then graph y=-f(x-5).

Answer 41

i am just trying to make sure i know everything so if i were to start off with y=-f(x) and it said translate it to the x axis i would just remove the -(neg) symbol right?