Question
Asked Sep 23, 2019
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Find a formula for the quadratic function whose graph has a y-intercept of  y=11 and x-intercepts at  x=1,4.

 

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Expert Answer

Step 1

To find the expression (second degree in x) for y from the given data

Step 2

Deriving the quadratic ...

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Image Transcriptionclose

(x-int ercepts) y0, when x 14 Write y a(x-1x-4) (y-intercept) Next,x 0 y11 So, 11 a(0-)(0-4) 4a Thus, y I(x-1)(x-4) _ 11(x2 - 5x+ 4) 4 4

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Tagged in

Math

Algebra

Equations and In-equations