Answer:
a) x=-2 then y=10
x=-1 then y=5
x=1 then y=1
x=3 then y= 5
b)x=-0.8;x=2.8
Step-by-step explanation:
a) We have the formula [tex]y=x^{2} -2x+2[/tex]
Instead of x, we will plug in the given value to find y.
If x=-2:
[tex]y=(-2)^{2} -2*(-2) +2\\y=4+4+2\\y=10[/tex]
If x=-1:
[tex]y=(-1)^{2} -2*(-1)+2\\y=1+2+2\\y=5[/tex]
If x=1:
[tex]y=1^{2} -2*1+2\\y=1-2+2\\y=1[/tex]
If x=3:
[tex]y=3^{2} -2*3+2\\y=9-6+2\\y=5[/tex]
b) We know when x=0 then y=2
We need to move two boxes up to get to y=4
We can estimate that x = -0.75;x=2.75
We are supposed to round it to the 1. decimal place.
x=-0.8;x=2.8
