Write a rule for the linear function in the table.
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OpenStudy (madhatter):
OpenStudy (madhatter):
I have this big hw thing i have to do and if i fail it then i am done for that is y i am asking for so much help
OpenStudy (anonymous):
its fine, i see the pattern, but idk how to right it as a rule, let me think a little more
OpenStudy (madhatter):
kk its just like the first one
OpenStudy (anonymous):
@jim_thompson5910 can u help find the rule??
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OpenStudy (anonymous):
r u trying to find the equation??
OpenStudy (madhatter):
yep
OpenStudy (madhatter):
..... i sure am
OpenStudy (anonymous):
hey, i cant find this one, SRY:(
OpenStudy (madhatter):
oh its fine
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jimthompson5910 (jim_thompson5910):
notice as x increases by 1, y decreases by 1
jimthompson5910 (jim_thompson5910):
this means that this function is linear
jimthompson5910 (jim_thompson5910):
slope between the points (1, 3) and (2, 2)
m = (y2-y1)/(x2-x1)
m = ( 2- 3)/(2-1)
m = (-1)/1
m = -1
y-intercept
y = mx + b
y = -1x + b
3 = -1(1) + b
3 = -1 + b
3 + 1 = b
b = 4
m = -1
b = 4
y = mx + b
y = -1x + 4
y = -x + 4
So the function is f(x) = -x+4
I'll let you do the checks