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Question (21)

QN009189

A savings account starts with ₹2000 and increases by ₹500 monthly. Which equation represents the amount after m months?

(A) A=2000−500m
(B) A=500m−2000
(C) A=2000+500m
(D) A=2500m

Correct Answer: C

Explanation:

Initial amount + monthly increase.

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Question (22)

QN009190

Find the amount after 6 months using A=2000+500m.

(A) ₹4500
(B) ₹5000
(C) ₹5500
(D) ₹6000

Correct Answer: B

Explanation:

2000+500(6)=5000

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Question (23)

QN009191

Which equation represents linear decay?

(A) y=8x+2
(B) y=12−3x
(C) y=x 2 +1
(D) y=2 x

Correct Answer: B

Explanation:

Negative coefficient indicates decay.

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Question (24)

QN009192

If the slope of a line is positive, the graph:

(A) slopes upward from left to right
(B) slopes downward from left to right
(C) becomes horizontal
(D) becomes circular

Correct Answer: A

Explanation:

Positive slope rises upward.

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Question (25)

QN009193

If the slope of a line is negative, the graph:

(A) slopes upward
(B) becomes horizontal
(C) slopes downward
(D) becomes vertical

Correct Answer: C

Explanation:

Negative slope falls downward.

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Question (26)

QN009194

Find the y-intercept of y=6x+9.

(A) 6
(B) 9
(C) –6
(D) –9

Correct Answer: B

Explanation:

Constant term is 9.

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Question (27)

QN009195

Which ordered pair satisfies y=5x−1?

(A) (1, 3)
(B) (2, 9)
(C) (3, 14)
(D) (4, 18)

Correct Answer: C

Explanation:

5(3)−1=14

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Question (28)

QN009196

The equation y=9 represents:

(A) a vertical line
(B) a horizontal line
(C) a circle
(D) a parabola

Correct Answer: B

Explanation:

y remains constant.

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Question (29)

QN009197

The equation x=4 represents:

(A) a vertical line
(B) a horizontal line
(C) a sloping line
(D) a curve

Correct Answer: A

Explanation:

x remains constant.

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Question (30)

QN009198

A phone recharge balance decreases by ₹25 daily from ₹500. Which equation represents the balance after d days?

(A) B=500+25d
(B) B=25d−500
(C) B=500−25d
(D) B=525d

Correct Answer: C

Explanation:

Balance decreases daily.

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Question (21)

A savings account starts with ₹2000 and increases by ₹500 monthly. Which equation represents the amount after m months?

Explanation:

Link:

Question (22)

Find the amount after 6 months using A=2000+500m.

Explanation:

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Question (23)

Which equation represents linear decay?

Explanation:

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Question (24)

If the slope of a line is positive, the graph:

Explanation:

Link:

Question (25)

If the slope of a line is negative, the graph:

Explanation:

Link:

Question (26)

Find the y-intercept of y=6x+9.

Explanation:

Link:

Question (27)

Which ordered pair satisfies y=5x−1?

Explanation:

Link:

Question (28)

The equation y=9 represents:

Explanation:

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Question (29)

The equation x=4 represents:

Explanation:

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Question (30)

A phone recharge balance decreases by ₹25 daily from ₹500. Which equation represents the balance after d days?

Explanation:

Link:

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