Question

A school record in a certain race in 1960 was 3.8 minutes. In 1980 the school record in the same event was 3.65 minutes.
choose the linear equation for these data points:
A) y=.0075x -18.5
B) y=-.0075x + 18.5
C) y=.0075x+18.5

Answer 1

help me ..................

Answer 2

times it by 2

Answer 3

how about y'all just shut up if you're not going to help..

Answer 4

me

Answer 5

too

Answer 6

ya

Answer 7

make me

Answer 8

alright ni realllllyy need help and she will cut you

Answer 9

and how ols are yall acting like 10 yr oldsss
and its not wsh its wish ...

Answer 10

look, bro. you don't know me and i'm not about to fight a CHILD on the internet. delaine, i'm not going to cut anyone. "poopster09", please leave us alone. because you're just downright obnoxious.

Answer 11

hahahahaahahahahhahahahhahaha

Answer 12

it would be b.
from 1960 to 1980 the time decrease by 0.15 minutes, so slope would be
\[ -(0.15/20)=-0.0075\]
as b is the only equation with negative slope, it has to be the right one.
Also you could just insert the numbers (x=year)
if x=1960 then:
\[-0.0075*1960 +18.5 = -14.7 + 18.5 = 3.8\]
if x=1980 then
\[-0.0075*1980 +18.5 = -14.85 + 18.5 = 3.65\]

so you have double proof of b being right ;)

Answer 13

ahaahahah

Answer 14

cool story, bro.