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If y=x^2+2x Find the value of y when x=-1

If y=x^2+2x Find the value of y when x=-1
asked 105k views
1 vote
If y=x^2+2x
Find the value of y when x=-1

asked
User Awesomo
by
6.9k points

1 Answer

4 votes
y=x^2+2x
Substitute -1 for x
y=-1^2+2(-1)
Square -1
y=1+2(-1)
Multiply 2 by -1
y=1+ (-2)
Subtract 2 from 1
Final Answer: y=-1
answered
User Larry K
by
8.1k points
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