Question

I need help solving an equation with a graphing calculator.

Answer 1

The instruction are like this: Use the graphing calculator to solve the following equations. Show the sketch of the graph including the WINDOW used to obtain the graph.

a) \[\left| 2x-5 \right|=1\]

b)
\[\left| 2x-5 \right| = -3\]

Answer 2

Do you know how to use a graphing calculator?

Answer 3

Not that well faith could you walk me through?

Answer 4

Okay, do you have a TI-84?

Answer 5

a ti-89

Answer 6

I think it's somewhat similar

Answer 7

Okay, press y=

Answer 8

It should be on the upper left hand corner

Answer 9

Okay there

Answer 10

Yeah it is

Answer 11

Do you have a button that says "MATH"?

Answer 12

Yeah

Answer 13

Press it.
Then go to the left.

Answer 14

Oh absolute sign

Answer 15

The highlighted part with the words should say "NUM"

Answer 16

Click the option that says "abs("

Answer 17

Yes

Answer 18

Oh okay got it

Answer 19

So right now its y1= abs(2x-5

Answer 20

do i close it with a normal parentheses?

Answer 21

You don't have to

Answer 22

After that, you just press graph.

Answer 23

but what about the =1 part

Answer 24

I think you just have to use algebra to solve it

Answer 25

The professor wants us to solve it graphically though not algebraically

Answer 26

But I'm not very good with graphing calculators lol

Answer 27

you could put the right side of the equation on one line and then left side on another line and then find the points of intersection

Answer 28

So y1 = abs(2x-5
and y2 =1

Answer 29

y1= absolute value (2x-5)
y2=1

Answer 30

Do i not need to close y1 with a parentheses?

Answer 31

Oh okay

Answer 32

yes on the TI-84 you go to 2nd trace 5 enter, enter, enter

Answer 33

not sure how to do that on a TI89

Answer 34

What is trace for