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March 29, 2024, 04:25:15 am

Author Topic: Quadratic Worded Problem  (Read 821 times)  Share 

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ally1784

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Quadratic Worded Problem
« on: January 21, 2021, 03:41:28 pm »
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Hi can someone help me with this question please?

Sine

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Re: Quadratic Worded Problem
« Reply #1 on: January 21, 2021, 03:56:25 pm »
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Hi can someone help me with this question please?
What aspect are you finding difficult?

A hint would be to think about what points does the parabola pass through.

Bri MT

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Re: Quadratic Worded Problem
« Reply #2 on: January 21, 2021, 03:58:59 pm »
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Hints:

hint 1
- You know the co-ordinates of both intercepts

hint 2
- You can easily find the y-co-ordinate of A

hint 3
- The x co-ordinate of A is halfway between the x intercepts

ally1784

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Re: Quadratic Worded Problem
« Reply #3 on: January 21, 2021, 04:08:31 pm »
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the y-coordinate of A is 0.6 and aren't the coordinates (0,0) & (15,0)

Bri MT

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Re: Quadratic Worded Problem
« Reply #4 on: January 21, 2021, 04:49:13 pm »
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the y-coordinate of A is 0.6 and aren't the coordinates (0,0) & (15,0)

I'm assuming you meant 1.5 rather than 15? Otherwise, looking good!

You can now find the x-coord of A (use hint 3 from above if you are stuck)

You also know what the value of c is.

You can then use simultaneous equations to solve for a & b :)