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# If x can have only the values —3. 0, and 2, and y can have o

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Founder
Joined: 18 Apr 2015
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GRE 1: Q160 V160
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Kudos [?]: 3687 [0], given: 12942

If x can have only the values —3. 0, and 2, and y can have o [#permalink]  09 Jun 2018, 08:29
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Question Stats:

99% (00:34) correct 0% (00:00) wrong based on 28 sessions
Active Member
Joined: 29 May 2018
Posts: 126
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Kudos [?]: 112 [1] , given: 4

Re: If x can have only the values —3. 0, and 2, and y can have o [#permalink]  09 Jun 2018, 11:11
1
KUDOS
Carcass wrote:
If x can have only the values -3, 0, and 2, and y can have only the values -4, 2, and 3, what is the greatest possible value for $$2x + y^2$$?

(A) 13

(B) 15

(C) 16

(D) 20

(E) 22

Take $$2x + y^2$$ = > 2(2) + 16 ( here x = 2 that is max value and since y is square we can take largest -ve i.e. -4).

Ans D
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Joined: 06 Jun 2018
Posts: 94
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Kudos [?]: 80 [1] , given: 0

Re: If x can have only the values —3. 0, and 2, and y can have o [#permalink]  24 Jul 2018, 20:11
1
KUDOS
Carcass wrote:
If x can have only the values -3, 0, and 2, and y can have only the values -4, 2, and 3, what is the greatest possible value for $$2x + y^2$$?

(A) 13

(B) 15

(C) 16

(D) 20

(E) 22

we can analyse the value of x and y:

x = - 3.....0.............2

y = -4......2.............3

Given

$$2x + y^2$$

See we have $$y^2$$ that can make negative value to positive. So, highest value for y must be -4. For x we have to take positive value.

$$2x + y^2$$

= $$2*2 + (-4)^2$$

= 20

Re: If x can have only the values —3. 0, and 2, and y can have o   [#permalink] 24 Jul 2018, 20:11
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