©common core performance assessment
animal weight and food
molly claims when one animal weighs more than another animal,
it always eats more than the other animal. she also claims that
when one animal weighs less than another, it always eats less. she
supports her claims with the information shown in the table.
animal
weight
food eaten
data
caribou3/5
ton
12 pounds a day
giraffe 7/8
aton
100 pounds a day
panda1/4
iton
301 pounds a week
siberian tiger1/3
ton
55 pounds a day
3. mp.1 make sense and persevere which animal eats
the most? explain.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

you can't solve x because it is 2 linear equation and you only have one equation

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: