SOLUTION: Hi, I am really bad in graphs especially in quadratic. Please someone help me in this. would really appreciate this. Need to solve by using graph a. 2x² - 2x + 2 = 4 b. 2x² - 2x

Algebra ->  Graphs -> SOLUTION: Hi, I am really bad in graphs especially in quadratic. Please someone help me in this. would really appreciate this. Need to solve by using graph a. 2x² - 2x + 2 = 4 b. 2x² - 2x       Log On


   

Question 867148: Hi, I am really bad in graphs especially in quadratic. Please someone help me in this. would really appreciate this. Need to solve by using graph
a. 2x² - 2x + 2 = 4
b. 2x² - 2x = 10
If possible can you built a table of x and y to plot in graph as well please.
Hopefully from this I can understand this problems.
Tank you
Found 2 solutions by rothauserc, ewatrrr:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
a. 2x² - 2x + 2 = 4
b. 2x² - 2x = 10
both a and b can be reduced by dividing both sides of = by 2
a. x² -x + 1 = 4
x² -x - 3 = 0
b. x² -x = 5
x² -x - 5 = 0
the graph looks like
+graph%28+300%2C+200%2C+-10%2C+10%2C+-10%2C+10%2C+x%5E2+-x+-3%2C+x%5E2+-x+-5+%29+
function a is the red curve and function b is the green curve
these curves do not intercet, so there is no solution

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

a. y =  2x² - 2x -2   y-intercept is -2

y-intercept is -1

  y+=++2%28x-1%2F2%29%5E2+-2%281%2F4%29+-2

  y+=++%28x-1%2F2%29%5E2+-5%2F2+  V(.5, -2.5)  x = .5 Line of Symmetry