Question

Pleeaseee help!!! see attachment

Answer 1

I just want to ask if I am right in thinking that the width is .5 ?

Answer 2

Or no I'm sorry I meant 1. because they are asking for three rectangles so the width would have to be 1 right?

Answer 3

the heights would be 4, 8 and 11?

Answer 4

i think the width might be just 1

Answer 5

and the height? am I right on the heights?

Answer 6

you are dividing an interval of length 3 by 3, so i get 1

Answer 7

oh i better look closely

Answer 8

we don't really need the picture the equation is \(y=3x-4\) so if \(x=2\) you get
\[y=3\times 2-4=6-4=2\] first rectangle has height 2

Answer 9

if \(x=3\) you get \(y=3\times 3-4=5\) and if \(x=4\) the height is \(y=3\times 4-4=8\)

Answer 10

i have to say this is really a rather dumb problem, since you can find the actual area using geometry and the fact that you have a triangle and a rectangle to find the area of
no need to estimate using this stupid method

Answer 11

oh ok I honestly was not taught to do that...

Answer 12

yeah I feel a little silly since you pretty much made it so simple

Answer 13

inscribed rectangles means the smaller ones
take the left hand endpoints
"circumscribed" ones you would use the right hand endpoints, 3, 4, and 5

Answer 14

ok. got it!! thanks!!!

Answer 15

yw