12/8 Chapter 5 Review(Quadratics)

Substituting Values

100

x=-2

x²-4x+10

22

200

x=9

x²+3x-21

87

300

x=13

-x²+x+9

-147

400

x=1.5

x²-4x+5.5

1.75

500

x=-7

-3x²-14x+23.5

-25.5

Solving with the Quadratic Formula

100

2p²+3p-2=0

p = 1/2 and -2

200

2m²-3m-5=0

m = 5/2 and -1

300

x²-6x+4

x = 5.23 and 0.76

400

2a²+a-21

a = 3 and -3.5

500

3x²-11x+10

x = 5/3 and 2

Solving with Factoring

100

x²-36

(x+6)(x-6)

x= -6 and 6

200

4x²-64

(2x-8)(2x+8)

300

x²+6x-16

(x-2)(x+8)

400

x²-5x-36

(x-9)(x+4)

500

3x²-2x-5

(3x-5)(x+1)

Parabola Key Features

100

Slideshow

Write as an ordered pair

{0,1}

200

Slideshow

line of symmetry

x=-1

300

Slideshow

x intercepts

(-3,1)

400

Slideshow

y-intercept

y=-3

500

These are all the 4 key features of parabolas / quadratic functions

roots / x intercepts / solutions / zeros

y intercept

axis of symmetry / line of symmetry

vertex

Random

100

This is the quadratic formula

-b plus or minus SQ Rt -b^2 - 4ac all over 2a

^{lol write this on the board}

200

This is the order of operations

P E MD AS

300

What 5 things are needed for a box plot?

Min, Q1, Q2/ Median, Q3, Max

400

When we factorise we can find?

the roots / the x intercepts

500

What axes do the explanatory and response variables go on?

x- e

y - r