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11 votes
Identify the value of a if
y= ax+ 7x + 2
and the point (2, 12) is on the graph.

1 Answer

7 votes

Answer:

a=-2

So yep. ;)

Explanation:

Alright, so, (2,12), 2 is the x and 12 is the y.

Stick them into the equation:
12=a*2+(7*2)+2

Then, solve:


12=a*2+14+2

a = -2

So yes, they're on the graph.

Hope this helped! :)

User Kidnim
by
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