SOLUTION: Find the value of 'a' such that the graphs of 4y=ax+2 and 1/5y = 1/4x + 7 are parallel. i'm trying to figure out this question cuz my little bro is having problems with it, and i

Question 37092: Find the value of 'a' such that the graphs of 4y=ax+2 and 1/5y = 1/4x + 7 are parallel. i'm trying to figure out this question cuz my little bro is having problems with it, and i cant get it. thanks
Answer by venugopalramana(3286) (Show Source): You can put this solution on YOUR website!
Find the value of 'a' such that the graphs of 4y=ax+2 and 1/5y = 1/4x + 7 are parallel. i'm trying to figure out this question cuz my little bro is having problems with it, and i cant get it. thanks
FOR 2 LINES TO BE PARALEL THEIR SLOPES SHOULD BE EQUAL
4Y=AX+2.....OR...Y=AX/4 + 2/4..................I
SLOPE=A/4
Y/5=X/4 +7..OR....Y=5X/4+7/4.....................II
SLOPE =5/4
A/4 = 5/4
A=4*5/4=5
A=5
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