Bundle apps for up to 10% off monthly subscription. Explore video, sports, music, gaming apps & more. Only on CAST.SG, Singtel's app marketplace

Get Singtel CAST Watch anywhere, available on web and mobile.

By proceeding you agree to our Terms and Conditions and Singtel Data Protection Policy

Understanding the Context

Singtel T&Cs | CAST T&Cs | Promo T&Cs | Singtel Data Protection Policy Singtel (CRN: 199201624D) All Rights Reserved

Get Singtel CAST Watch anywhere, available on web and mobile.

Enjoy live streaming channels, TV shows and movies today on your desktop, tablet and mobile. Sign up and watch instantly. No set-top box required.

🔗 Related Articles You Might Like:

📰 Solution: Let $ h(x) = ax^2 + bx + c $. From $ h(1) = a + b + c = 5 $ and $ h(-1) = a - b + c = 3 $, adding gives $ 2a + 2c = 8 $, so $ a + c = 4 $. The sum of roots is $ - rac{b}{a} = 4 $, so $ b = -4a $. Substituting $ b = -4a $ into $ a + b + c = 5 $: $ a - 4a + c = 5 $ → $ -3a + c = 5 $. Since $ a + c = 4 $, subtracting gives $ -4a = 1 $, so $ a = - rac{1}{4} $. Then $ c = 4 - a = 4 + rac{1}{4} = rac{17}{4} $, and $ b = -4a = 1 $. Thus, $ h(x) = - rac{1}{4}x^2 + x + rac{17}{4} $. Multiplying by 4 to eliminate fractions: $ h(x) = -x^2 + 4x + 17 $. Verifying $ h(1) = -1 + 4 + 17 = 20 $? Wait, inconsistency. Rechecking: $ a = -1/4 $, $ c = 17/4 $, $ b = 1 $. Then $ h(1) = -1/4 + 1 + 17/4 = (-1 + 4 + 17)/4 = 20/4 = 5 $, correct. $ h(-1) = -1/4 -1 + 17/4 = ( -1 -4 + 17 )/4 = 12/4 = 3 $, correct. Sum of roots $ -b/a = -1 / (-1/4) = 4 $, correct. Final answer: $ oxed{-x^2 + 4x + \dfrac{17}{4}} $ or $ oxed{-\dfrac{1}{4}x^2 + x + \dfrac{17}{4}} $. 📰 Question: A science communicator observes that the number of views $ V(t) $ on a video grows quadratically over time $ t $ (in days). If $ V(1) = 120 $, $ V(2) = 200 $, and $ V(3) = 300 $, find $ V(4) $. 📰 Solution: Assume $ V(t) = at^2 + bt + c $. From $ V(1) = a + b + c = 120 $, $ V(2) = 4a + 2b + c = 200 $, $ V(3) = 9a + 3b + c = 300 $. Subtract first equation from the second: $ 3a + b = 80 $. Subtract second from the third: $ 5a + b = 100 $. Subtract these: $ 2a = 20 $ → $ a = 10 $. Then $ 3(10) + b = 80 $ → $ b = 50 $. From $ a + b + c = 120 $: $ 10 + 50 + c = 120 $ → $ c = 60 $. Thus, $ V(t) = 10t^2 + 50t + 60 $. For $ t = 4 $: $ V(4) = 10(16) + 50(4) + 60 = 160 + 200 + 60 = 420 $. Final answer: $ oxed{420} $. 📰 Peak Fiction 5054843 📰 From Youtube Fame To Real Life Justice Bounty Hunter Bounty Hunters Shocking Journey 6381198 📰 Flow Game Hacks Thatll Boost Your Score Overnightdont Miss 7169349 📰 You Wont Believe Whos Dominating Transtar Houstons Texas Contracts 5580526 📰 Wells Fargo Checking Account Phone Number 6171423 📰 Koc University 1446618 📰 Change Zar To Dollars 9214670 📰 Verschillende Insmed Breakthrough Shocking Secrets Inside The Future Of Renewable Energy 5666503 📰 S A G Awards Winners 5354633 📰 Unlock Dcs Best Free Museums You Can Tour Without Spending A Cent 8333414 📰 Crypto Rewards Credit Card 1243787 📰 These Movies Are Pure Chill No Stresses Just Smooth Vibes Mind Bending Plots 7353982 📰 You Wont Believe How Elvie Pump Changes Me Within Hours 2038931 📰 Fonts Behave Differently When Roman Letters Mattertry This Stunning Trick Now 1915786 📰 Waitardx Stock Just Broke Records You Need To Invest Before Its Too Late 2761824