What is the standard form of #y= (x-4)(x+7) #?

Answer 1

I believe you are asking for the graphical form of the above equation.

In that case, you will have to expand the equation, which I will illustrate next:

#y=(x-4)(x+7)# #y=x^2-4x+7x-28# #y=x^2+3x-28#

And done! There you go - I hope this helps!

By the way, the degree of polynomial is the superscript above each term in the equation. The highest degree is 2 (#x^2#), while the lowest is 0 (#28#).

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Answer 2

Hazel Anglin

The standard form of the quadratic equation ( y = (x - 4)(x + 7) ) can be found by expanding the expression:

( y = x^2 + 7x - 4x - 28 )

( y = x^2 + 3x - 28 )

So, the standard form is ( y = x^2 + 3x - 28 ).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.