`x` left parenthesis, 6.5 , 0 , right parenthesis6.5,0
Label:
21
Hidden `\frac{-b-\sqrt{\Delta}}{2a}` left parenthesis, 1.7 5 , negative 0.7 9 , right parenthesis1.75,−0.79
Label:
22
`y=0\ ⟹\ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}` left parenthesis, 3.0 6 , 2.2 , right parenthesis3.06,2.2
Label:
23
`= \frac{3\pm\sqrt{9-5}}{1}` left parenthesis, 3.5 9 , 1.1 4 , right parenthesis3.59,1.14
Label:
24
`= 3 \pm 2` left parenthesis, 2.9 8 , 0.4 , right parenthesis2.98,0.4
Label:
25
Expression 26: "l" Subscript, 1 , Baseline . "x" minus 1.7 less than or equal to "x" less than or equal to "l" Subscript, 1 , Baseline . "x" plus 1.7 left brace, "l" Subscript, 1 , Baseline . "y" minus .5 less than "y" less than "l" Subscript, 1 , Baseline . "y" plus .5 , right bracel1.x−1.7≤x≤l1.x+1.7l1.y−.5<y<l1.y+.5
26
Expression 27: "l" Subscript, 2 , Baseline . "x" minus 1.4 less than or equal to "x" less than or equal to "l" Subscript, 2 , Baseline . "x" plus 1.4 left brace, "l" Subscript, 2 , Baseline . "y" minus .5 less than "y" less than "l" Subscript, 2 , Baseline . "y" plus .5 , right bracel2.x−1.4≤x≤l2.x+1.4l2.y−.5<y<l2.y+.5
27
Hidden `\left(-\frac{b}{2a},\frac{-\Delta+1}{4a}\right)` "l" Subscript, 1 , Baseline equals left parenthesis, 5.4 4 , 1.0 5 , right parenthesisl1=5.44,1.05
Label:
28
Hidden `x=-\frac{b}{2a}` left parenthesis, 4.3 4 , 4.4 8 , right parenthesis4.34,4.48
Label:
29
Hidden `\left(-\frac{b}{2a},\frac{-\Delta}{4a}\right)` "l" Subscript, 2 , Baseline equals left parenthesis, 5.3 7 , negative 1.6 7 , right parenthesisl2=5.37,−1.67
Label:
30
Hidden `y=\frac{-\Delta-1}{4a}` left parenthesis, 2.0 6 , negative 3.0 4 , right parenthesis2.06,−3.04
Label:
31
Hidden `\left(0,\ c \right)` left parenthesis, 0 , "c" , right parenthesis0,c
Label:
32
Expression 33: "w" equals rgb left parenthesis, 255 , 255 , 255 , right parenthesisw=rgb255,255,255
33
Expression 34: "u" equals 6.4 3u=6.43
negative 10−10
11.9 411.94
34
`y=\ \ \ x^{\ \ } -3x+\ \ \ \ ` left parenthesis, "u" , "f" left parenthesis, "u" , right parenthesis , right parenthesisu,fu
Label:
35
`\ \ \ \ \ \ \ \frac12 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \frac52\ ` left parenthesis, "u" , "f" left parenthesis, "u" , right parenthesis , right parenthesis plus left parenthesis, positive .0 2 8 , negative .2 5 , right parenthesisu,fu++.028,−.25
Label:
36
`2` left parenthesis, 4.1 1 , 4.3 5 , right parenthesis4.11,4.35
Label:
37
Hidden `\Delta = b^2-4ac` left parenthesis, 8.7 1 , 5.3 2 , right parenthesis8.71,5.32
Label:
38
39
powered by
powered by
left parenthesis, 1 , 0 , right parenthesis1,0
left parenthesis, 5 , 0 , right parenthesis5,0
"y"y
"x"x
"y" equals 0 ⟹ "x" equals StartFraction, negative "b" plus-or-minus StartRoot, "b" squared minus 4 "a" "c" , EndRoot Over 2 "a" , EndFractiony=0⟹x=−b±b2−4ac2a
equals StartFraction, 3 plus-or-minus StartRoot, 9 minus 5 , EndRoot Over 1 , EndFraction=3±9−51
equals 3 plus-or-minus 2=3±2
"y" equals "x" Superscript, , Baseline minus 3 "x" plusy=x−3x+
