m = , (x₁ , y₁) = (-2, -4)
y - y₁ = m(x - x₁)
y -(-4) = (x - (-2))
y + 4 = (x +2)
y + 4 = + 1
y = - 3
Answer: A
A smartphone costs $120. Sales tax is 55%. What is the total cost, including tax?
2 answers:
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Answer:
Step-by-step explanation:
hope this help
Answer:
Step-by-step explanation:
We have an equation, and the question is asking for us to solve y. So to solve, we have to isolate y.
6x - 4y = 12
Subtract 6x from both sides :
-4y = 12 - 6x
Divide both sides by -4 :