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Presentation transcript:

Stir it up!ExponentsGraphingMixVocab

What is the vertical line test?

Use a pencil or draw a vertical line through a function to check if they intersect more than once.

Write in the form of an expression: 6 less than the product 5 and x.

5x - 6

Simplify: (x 2 z 3 )(xy 2 z 2 )

x3y2z5x3y2z5

C = 5/9 (F -32) is the formula for converting a Fahrenheit temperature to Celsius. Use it to find C when F = 99.

C = 37.2

A car travels 120 miles in 3 hours. What's its average speed (in miles per hour)?

120mi 3 hrs = 40 mph

Find the product of 3x 3 and 6x 5.

18x 8

Find the sum of: 3x 2 + 4x + 2 and x 2 - 5x + 4

4x 2 -x + 6

Distribute and simplify: (x + 2)(x 2 -3x+2)

After distributing: X 3 -3x 2 +2x+2x 2 -6x+4 Combine like terms: x 3 -x 2 -4x+4

Subtract 3x 2 -2x+1 from 2x 2 +7x+5 *Hint: Distribute the negative!

2x 2 +7x+5-(3x 2 -2x+1) =-x 2 +9x+4

Distribute using FOIL: (x-6)(x+4)

FOIL gives us: x 2 +4x-6x-24 Then, combine like terms: x 2 -2x-24

Write the equation a line that has a slope of -3 and a y-intercept of -4.

Y = -3x - 4

Describe the graph of the line: x = 2

X = 2 is the vertical line that passes through (2, 0).

What is the slope of the line 6x – 2y = 10?

6x – 2y = 10 Convert to y=mx+b y = 3x - 5 SLOPE is 3

What type of function does this graph represent?

Exponential Function

In what quadrants are the solutions to this system of inequalities? Y -x + 4

Quadrants 1 & 4

If n + 2 represents an odd integer, what's the next largest odd integer?

n+4

Which line is undefined? A. B. C. D.

B

Solve for x: 7x + 2 = 16 10

X = 20

If y varies directly with x and y=15 when x = 3.5, what is the constant of variation?

Y=4.29x

Solve the system of equations. 2x + 3y = 12 2x - 2y = 2

X=3 Y=2

What is the name of the property shown below? (x+y)+z = x+(y+z)

The Associative Property

What property should you use to simplify this expression? 2x(5x )

The Distributive Property

5x + 0 = 5x In the above equation, what special name does the zero have?

Additive Identity Element

What is another name for a number's reciprocal?

Multiplicative Inverse *flip do not change sign ex: ¼=4/1=4

(1)x=x In the above equation, what special name does the one have?

Multiplicative Identity Element