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Rachel98
Group Title
Check my answer? I needed to make these equations into y = mx + b form: 42x  4y = 3, 21x = 2y  3, and 21x = y + 3/2.
My answer for #1: y =  10.5x  (3/4). For #2: y = 10.5x + 1.5, For #3: y =  21x + 3/2.
 one year ago
 one year ago
Rachel98 Group Title
Check my answer? I needed to make these equations into y = mx + b form: 42x  4y = 3, 21x = 2y  3, and 21x = y + 3/2. My answer for #1: y =  10.5x  (3/4). For #2: y = 10.5x + 1.5, For #3: y =  21x + 3/2.
 one year ago
 one year ago

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phi Group TitleBest ResponseYou've already chosen the best response.1
you are getting the wrong signs on answers #1 and #3
 one year ago

Rachel98 Group TitleBest ResponseYou've already chosen the best response.1
What do you mean by signs?
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
42x  4y = 3 can you do this one step by step ?
 one year ago

Rachel98 Group TitleBest ResponseYou've already chosen the best response.1
I subtract 42x from both sides and get  4y =  42x + 3, then I divide everything by  4, to isolate y and get y =  10.5x  (3/4).
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
sounds good, except 42x/4 is not 10.5x
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
minus over minus makes a positive
 one year ago

Rachel98 Group TitleBest ResponseYou've already chosen the best response.1
It's positive 10.5, just realized my mistake.
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
that's what I meant by getting the wrong sign
 one year ago

Rachel98 Group TitleBest ResponseYou've already chosen the best response.1
Okay, thanks.
 one year ago

phi Group TitleBest ResponseYou've already chosen the best response.1
for the last question 21x = y + 3/2 subtact 3/2 from both sides 21x  3/2 =y or y = 21x 3/2
 one year ago
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