Answer:
1. y=80, equation:y=10x
2. x=6, k=3
3. x=6, k=2
Step-by-step explanation:
1.
y=10x
y=10(8)
y=80
2. y=3x
18=3x
18/3=3x/3
x=6
k=3
3. y=2x^2
72=2x^2
72/2=2x^2/2
36=x^2
√36=√x^2
k=2
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Answers & Comments
Answer:
1. y=80, equation:y=10x
2. x=6, k=3
3. x=6, k=2
Step-by-step explanation:
1.
y=10x
y=10(8)
y=80
2. y=3x
18=3x
18/3=3x/3
x=6
k=3
3. y=2x^2
72=2x^2
72/2=2x^2/2
36=x^2
√36=√x^2
x=6
k=2