SOLUTION: Please help with these:
1.solve -3< 2x +5≤15
2.if f(x)= -x+2x then what is the value of f(-2)
I have the answer to number 1
x=5
for number 2 I have f=-2
Algebra.Com
Question 682853: Please help with these:
1.solve -3< 2x +5≤15
2.if f(x)= -x+2x then what is the value of f(-2)
I have the answer to number 1
x=5
for number 2 I have f=-2
Please tell me if I am right or wrong.
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Subtract 5 from each segment of the inequality
...
Divide each segment of the inequality by 2
...
...
...
f(x) = -x + 2x
f(-2) = -(-2) + 2(-2)
= 2 + -4
= -2
f(-2) = -2
.....................
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