STAAR Review

S L O P E

100

What is slope intercept form?

y=mx+b

200

y=-5x - 8

What is the slope?

-5

300

If I am only give two points, how can I determine slope?

Slope of a Line

y2-y1/x2-x1

400

Find Slope.

(5, 4) and (-10, 34)

-1/2

500

What are the four different types of slopes?

positive, negative, undefined, zero

Quadratic Functions

100

X-intercepts are the same thing as...

Zeros, Solutions, Roots

200

In standard quadratic form, what letter represents the y-intercept of a quadratic graph?

C

300

Describe the minimum and maximum of a parabola?

Hint: include the vertex

minimum- vertex is the lowest point

maximum- vertex is the highest point

400

Parabola will open up or down when?

up- 'a' is positive

down -'a' is negative

500

What is the quadratic formula?

***Correct quadratic formula from reference sheet

Exponents

100

167,800⁰=?

1

200

(x⁴)⁵=?

x²⁰

300

(z⁵)(z^-3)=?

z²

400

5x^-2=?

5/x²

500

(5f⁴)(5r⁴)(f³)

25f⁷r⁴

Linear Functions

100

2x-8=-6x+40

x=?

6

200

Simplify.

(5x+9)(3x-8)

15x²-13x-72

300

Create an equation in slope intercept form.

(5, 10) and (7, 14)

y=2x

400

What is the solution to this set of linear equations?

x+2y=4

7x+2y=-8

(-2, 3)

500

5x-6y>36

Simplify the inequality.

HINT put it into slope intercept form

y<5/6x-6

Random

100

5x²+14x-8

Describe the parabola

***Hint 

1. wide or narrow?

2. what direction is it opening?

3. What is the y-intercept?

Narrow

Up

(0, -8)

200

f(x)= 5(1/2)^x

What is the y-intercept?

5

300

A new line is parallel to the old line 'y=3x-7'

What is the new line's slope?

3

400

A new line is perpendicular to an old line 'y=5/4x+9'

What is the new line's slope?

-4/5

500

When in doubt?

Substitute or Graph