Question

Can someone help me, please?? I'll give medals

Answer 1

Phineas is the lead research scientist in a lab and responsible for ordering supplies and equipment. The lab is out of petri dishes, so Phineas orders 185 of them. The lab uses 12 petri dishes each day.

Explain how you would write a two-variable linear equation for this situation.

Answer 2

Any ideas?

Answer 3

it has to do with stamdard form Ax+By=C

Answer 4

right?

Answer 5

yes

Answer 6

But FIRST think about what the question is asking for...

Answer 7

The lab starts with how many dishes?

Answer 8

they want me to model the situation with a function

Answer 9

we will get to the model later :-)

Answer 10

ok, then what the first step?

Answer 11

The lab starts with how many dishes?

Answer 12

185

Answer 13

which will end up being the y-intercept right?

Answer 14

right

Answer 15

Now from that 185 how many dishes are used per day?

Answer 16

12, which is the slope

Answer 17

Yes, but it is being SUBTRACTED off so it must be a negative slope, right?

Answer 18

yes, technically it's -12/1

Answer 19

Making a sketch may help.

Answer 20

Try it^ :-)