Accelerated Math 1 Unit 5 - Fall, 2011 NAME _ Graphing Quadratic Functions - Review W/S #3 Solve the following inequalities algebraically and graphically. ) -\\LXL O inequality X L - 2or x>Cf 2)x 2 -7x-18 > 0 (X-q';(x + 2..) = Q X~q \X=-2 3)12111 2 - 60m :s; 0 12Y""1fm - 5)= 0 t'Y1::::: () V"l'I = S inequality 4)3x 2 - X -1 0 < 0 (5"-+5 rx- 2.)-::: U, X~ 5/ 3 I X=- 2- 5)12x 2 + 24x + 9~0 ~ = 'f''--------C' :> ) -31 - y.., J(L/)(2-+g)(,+3 =-D 1'2- '- 3 (..2K i-3)K;LX t- I') == 0 X=- -3/2. \x:: - '/~ 6)2x 2 -26x+84 < 0 ~ (X 'L._13~;- 4-2)::;0 ;;, ex-Co'){x-,):=;o X-:=: 0 )X-, 7)6x 2 + 36x > 0 ~~~~CD+J-------jCDcw.·~ Co )( (X + c )= 0 - 6 .0 X~D X=--(O Convert each equation to standard form. 8)y=3(x-2)2 -5 j[X:L_4~+ yJ -) 3x. '2. - I 2.)( -f /2 ... - ::,- J lj =5X 2 -rJ--X +-'1 J o inequality -51 , 73 inequality x~ -3/2- 0..- X? -YL inequality inequality XL - &; Ov X. > 0 inequality 9)y = 2(x + 3)(x -7) ::=. 2lx2 -L/x - 21J ( ~:= ~~2--8x - 4-2 10)y=-3(x+5)2 -8 H =: - 3eX 2-~ 10)( .•.. Z. 'S J- 8 Y~ - 3x'2- - 3()~ - I <) - B ~ -3)(7-_3~83 I
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X 2or x>Cf - Typepad · Accelerated Math 1 Unit 5- Fall, 2011 NAME _ Graphing Quadratic Functions -Review W/S #3 Solve the following inequalities algebraically and graphically.
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Accelerated Math 1Unit 5 - Fall, 2011
NAME _Graphing Quadratic Functions - Review
W/S #3
Solve the following inequalities algebraically and graphically.
11) What is standard form and how do you find the vertex? . :::GlX + b)( +C X-==- /U)...12)What is vertex form and how do you find the vertex? -==Q. (X-h '-+-k. v=- (n. <.. ~13) Describe what the axis of symmetry is and how you know hat the-equation of the axis of symmetry is from
looking at the graph (\Hots" PCVla.foof '" If) h0..1f .14) Does every parabola have x-intercepts? (e~plain) No.::r.f +be pat"fllo()/U (S above.
Jbe Xt141S Q/Jd /)/!:k!.£ u..p J,.f wo(')1- cross +11£ )('-<2.)('(s. (a~ an ellO-mfle) ~15) Is it possible that there would only be one x-;ntercept? (explam)~es ~ whR.n ±b.L ~±-e-¥ '0/
l O"Y"'. )(-~\ ~ • ~16) In graphin a qua~ratic inequality with 2 var!ables, what determines whether to use a ~olid or dotted line?
=-the IO-eWloJ)\ '='1 Wf1n ~ L.. dotted L "2: Sol Ie(. _17) How do you know whe'tller to shade inside or outside of the . . ) ~parabola? Cfuce.. 0.. COrdCX):\..f?1 Me! Shade w~e 1+ is +n.u_ (v)S;olo or ~tC(P ~
18) What are the 3 other names for x-intercepts for a quadratic function? 56 t ut1~s I V1.>6~ t ~
, Find the x-in~;~~;ts (MUST BE WRITTEN AS ORDERED PAIRS!!!)g Oil ¥f :19)y=x2+3x-40 20)y=-2(x+5)2+32 21)y=2(x-4)x+5) rtochoW ~,....