SOLUTION: Could you please help me solve for the following problem Find the corresponding y values for x = -4, -3, -2, -1, 0, 1, 2 if y=x squared plus 2x minus 3. Could you please show

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Could you please help me solve for the following problem Find the corresponding y values for x = -4, -3, -2, -1, 0, 1, 2 if y=x squared plus 2x minus 3. Could you please show      Log On


   

Question 120485This question is from textbook college algebra/ blitzer
: Could you please help me solve for the following problem
Find the corresponding y values for x = -4, -3, -2, -1, 0, 1, 2 if y=x squared plus 2x minus 3.
Could you please show your work.
Thank You This question is from textbook college algebra/ blitzer

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
given:
x+=+-4, x=-3, x=-2, x=-1, x=0, x=1, x=2
y=x%5E2+%2B+2x+-+3

to find:

if x+=+-4, then y=x%5E2+%2B+2x+-+3 will be:

y=x%5E2+%2B+2x+-+3......substitute x with -4

y=%28-4%29%5E2+%2B+2%28-4%29+-+3......

y=+16+-+8+-+3......

y=+16+-+11+......

y=+5......


if x+=+-3 then y=x%5E2+%2B+2x+-+3 will be:


y=x%5E2+%2B+2x+-+3......substitute x with -3

y=%28-3%29%5E2+%2B+2%28-3%29+-+3......

y=+9+-+6+-+3......

y=+9+-+9+......

y=+0......

if x+=+-2, then y=x%5E2+%2B+2x+-+3 will be:


y=x%5E2+%2B+2x+-+3......substitute x with -2

y=%28-2%29%5E2+%2B+2%28-2%29+-+3......

y=+4+-+4+-+3......

y=+0+-+3+......

y=+-3......

if x+=+-1, then y=x%5E2+%2B+2x+-+3 will be:


y=x%5E2+%2B+2x+-+3......substitute x with -1

y=%28-1%29%5E2+%2B+2%28-1%29+-+3......

y=+1+-+2+-+3......

y=+1+-+5+......

y=+-4......


if x+=+0, then y=x%5E2+%2B+2x+-+3 will be:

y=x%5E2+%2B+2x+-+3......substitute x with -0

y=%280%29%5E2+%2B+2%280%29+-+3......

y=+0+-+0+-+3......

y=+-3......


if x+=+1, then y=x%5E2+%2B+2x+-+3 will be:


y=x%5E2+%2B+2x+-+3......substitute x with 1

y=%281%29%5E2+%2B+2%281%29+-+3......

y=+1+%2B+2+-+3......

y=+3+-+3+......

y=+0......


if x+=+2, then y=x%5E2+%2B+2x+-+3 will be:

y=x%5E2+%2B+2x+-+3......substitute x with 2

y=%282%29%5E2+%2B+2%282%29+-+3......

y=+4+%2B+4+-+3......

y=+8+-+3+......

y=+5......