Draw the Cartersian graph of Y=x^2+2x-3 for values of x range from -4 to +2.use the graph to find
a) The value of Y when x=1.5
b) The value of x when Y =1
c) The maximum value of x^2+2-3
d) The minimum value of x^2+2-3
e) The root of the equation:x^2+2x-5=7
so, did you draw the graph?
Did it look like this?
https://www.wolframalpha.com/input/?i=x%5E2%2B2x-3%2C+-4+%3C%3D+x+%3C%3D+2
Now just read off the answers to the questions.
Not sure how (e) applies, since it's a different equation. I suspect a typo.