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Veseljchak [2.6K]
3 years ago
9

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

Mathematics
1 answer:
alexandr1967 [171]3 years ago
6 0

Answer:

a=-2

So yep. ;)

Step-by-step 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! :)

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