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Algebra 1
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6
The function f(x) = x² − 5x − 6, written in correctly factored form, and its zeros are
(1) f(x) = (x − 2)(x + 3) with zeros of −2 and 3
(3) f(x) = (x − 6)(x + 1) with zeros of −6 and 1
(2) f(x) = (x + 3)(x − 2) with zeros of −3 and 2
(4) f(x) = (x + 1)(x − 6) with zeros of −1 and 6
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7
Which operation between two polynomials will not always result in a polynomial?
(1) Addition
(3) Multiplication
(2) Subtraction
(4) Division
AI solution
8
Judy solved the quadratic equation x² − 16 = 0 using the following steps:
Step 1:x² − 16 = 0
Step 2:(x − 2)(x + 8) = 0
Step 3:x − 2 = 0 or x + 8 = 0
Step 4:x = 2 or x = −8
Which statement is true about Judy’s method?
(1) Judy made a mistake between Steps 1 and 2.
(2) Judy made a mistake between Steps 2 and 3.
(3) Judy made a mistake between Steps 3 and 4.
(4) Judy solved the equation correctly.
AI solution
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Edexcel Paper 1 — 2024Non-calculator · Higher
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Direct proportion
Maths · GCSE
y is directly proportional to x.
y = 24 when x = 1.5
Work out the value of y when x = 5
y =
Variation 1 of ∞
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Your answer
Q3 of 10
y is directly proportional to x.
y = 24 when x = 1.5. Find y when x = 5.
y =
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13 y is directly
proportional to x.
y = 24 when x = 1.5
Work out y when x = 5
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Question recognised
Maths · Proportion
CONFIDENCE · 94%
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Step-by-step solution
AI · LIVE
y ∝ x ⇒ y = k · x
1
Sub in values24 = k × 1.5
2
Solve for kk = 24 ÷ 1.5 = 16
3
Plug x = 5y = 16 × 5 = 80
ANSWER y = 80
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