In a certain year, the amount A of garbage in pounds produced after t days by an average household is given by A=4.5t. Graph the equation for t0. How many days did it take for the average household to produce 150 pounds of garbage?

Question

In a certain year, the amount A of garbage in pounds produced after t days by an average household is given by A=4.5t. Graph the equation for t>0. How many days did it take for the average household to produce 150 pounds of garbage?

jackellyn · Answer

Substitute 150 for A in the equation and solve for t.

150=4.5t

anonymous · Answer

ok then what

jackellyn · Answer

That is the answer in days. You can make a table to graph.|dw:1377491294149:dw|

anonymous · Answer

ok ty I know how to graph it but what numbers do I graph?

jackellyn · Answer

t>0...start with 1 day and go until you can see a general trend in the graph

anonymous · Answer

ok so it would be 1,4,5 and this is where I got stuck

anonymous · Answer

on the second part that is

jackellyn · Answer

The second part is when you solve for t

150=4.5t
---   ----
4.5     4.5

? = t

anonymous · Answer

ok so it would start with 2 and I can't figure out how to get the last two numbers

jackellyn · Answer

Just graph any other numbers

anonymous · Answer

im lost on this

jackellyn · Answer

It's a two part question. The first is the graph

plot

t     A
-----
1    4.5
2    9
3    13.5
4    18

|dw:1377491901450:dw|