Review Simplify the following

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Presentation transcript:

Review Simplify the following a2 x a x a4 (x5)6 (a2bc)4 x (b2c)3

8.2 zero and negative exponents

Information Negative Exponents Ex: 5-2 = 1 52 Zero exponents Exponent is integer A-n = 1 / an Ex: 5-2 = 1 52 Zero exponents Number raised to zero answer is 1 a0 = 1 Ex: 3240 = 1

Examples - T 4y-2 50 1200 a-8b4 7-3 5-2 6-4 1,000,000,0000

St. Examples 13-7 xy0 8-10 1210 c3d-2 d-3e-7 60 8f-1

Evaluate expression. Write answer as fraction in simplest form - St 3-3 80 x 2-3 (23)-2 35 x 3-4

Evaluate expression. Write answer as fraction in simplest form - St 2-5 (6-1)2 50 5-7 x 59

Rewrite expression with positive exponents - T 3x0 / y-3 (5x)0y-2 1 / (3x)-3

Evaluate expression. Write answer as fraction in simplest form - St 3x-5 (4x)-2 7 / x-2 (2a)-2 x 3y5

Notes - T Y = 2x + 1 Exponential Function y = ax + c a ≠ 0 or 1 Exponential functions form gradual inclines/declines.

Graph the equation - St y = 4x

Exponential Graphs - T Complete table Graph the table of values As the value of x increases, what happens to y? X -3 -2 -1 1 2 3 Y = 3x

Exponential Graphs - T Complete table Graph the table of values As the value of x increases, what happens to y? X -3 -2 -1 1 2 3 Y = (1/2)x

Wrap up Questions/Comments Hw: text pg. 459, #’s: 14-48 evens, 54 – 58 evens, 66 - 68