SM3L Final Review

Factoring

100

Factor:

x²+7x+12

(x+3)(x+4)

200

Factor:

x²+11x+24

(x+3)(x+8)

300

Factor:

x²-16x+60

(x-10)(x-6)

400

Factor:

x²-13x+36

(x-9)(x-4)

500

Factor:

x²-13x-30

(x-15)(x+2)

Finding X-Intercepts

100

Find all the x-intercepts for:

y=2(x-1)(x-4)(x+6)

(1,0)  (4,0)  (-6,0)

200

Find all the x-intercepts for:

y=x(x+8)(x-4)

(0,0)   (-8,0)  (4,0)

300

Find all the x-intercepts for:

y=x²-9x+20

(5,0)    (4,0)

400

Find all the x-intercepts for:

y=(x-5)(x²-9)

(5,0)  (-3,0)   (3,0)

500

Find all the x-intercepts for:

y=(x+2)(x²+16)

(-2,0)

Finding Y-Intercepts

100

Find the y-intercept for:

y=2(x-1)(x-4)(x+6)

(0,48)

200

Find the y-intercept for:

y=x(x+8)(x-4)

(0,0)

300

Find the y-intercept for:

y=x²-9x+20

(0,20)

400

Find the y-intercept for:

y=(x-5)(x²-9)

(0,45)

500

Find the y-intercept for:

y=(x+2)(x²+16)

(0,32)

Evaluating Trig

100

sin(30^o)=

1/2

200

cos(7𝞹/6)=

-√3/2

300

tan(7𝞹/4)=

-1

400

csc(4𝞹/3)=

- 2/√3

500

cot(7𝞹/6)=

√3

MISC

100

True or False

In the equation :     sin(θ)=1/2

θ=30^o and θ=150^o

True

200

True or False

In the equation :     cos(θ)= -1/2

θ=60^o and θ=300^o

False

300

True or False

In the equation :     tan(θ)=1

θ=45^o and θ=225^o

True

400

If sin(θ) is positive and tan(θ) negative, then θ is in Quadrant ____.

Quadrant II

500

If cos(θ) is negative and sin(θ) negative, then θ is in Quadrant ____.

Quadrant III