Use the graphing calculator to graph the quadratic function y = 2x2 + 2x – 40. what are the zeros of the function?
4 and –5
–4 and 5
–5 and –40
4 and –40

A. 4 and -5.

Step-by-step explanation:

Please find the attachment.

We have been given a quadratic function . We are asked to graph our given function and find the zeros of the function.

First of all, let us divide our polynomial by 2.

Now, we will factor our given function using splitting the middle term.

We can see from our attachment that the graph crosses x-axis at two points that are . Therefore, the zeros of the function are 4 and -5.

answer: 45

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this