Mathematics: At how many points does the graph of the function below intersect the x-axis? y = 2x^2 - 7x + 7

At how many points does the graph of the function

Ответ:

aallyssabrown0120

08.01.2022

Mathematics

No such point on graph.

Step-by-step explanation:

Given: y=2x^2-7x+7

We are given quadratic equation. We need to find number of points where it cuts x-axis.

When graph cuts x-axis their y-value is 0

We will set the equation to 0 and solve for x

2x^2-7x+7=0

Using quadratic formula.

$x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

where, a=2 , b=-7 , c=7

$x=\dfrac{7\pm\sqrt{49-56}}{2(2)}$

$x=\dfrac{7\pm \sqrt{-7}}{4}$

$x=\dfrac{7\pm i\sqrt{7}}{4}$

The value of x is imaginary. So, y will not cut x-axis any any point.

Hence, No such point on graph which cut x-axis.

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Ответ:

aziah86

24.10.2022

Mathematics

about 82

step-by-step explanation:

of the 54 beavers they captured, only 14 were tagged. you have to find out how many beavers they captured they weren't tagged. for this you'd do 54-14, which equals 40. then you would add the 42 beavers they released with the number that weren't tagged. 40+42= 82 beavers

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At how many points does the graph of the function below intersect the x-axis? y = 2x^2 - 7x + 7

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