Algebra

Algebra:The study of mathematics that uses letters or symbols to represent numbers that are unknown.

Term:An expression formed by the product of numbers and variables.
EXAMPLE: 6,x,-3x

Coefficient:The number that multiplies variables in a term.
EXAMPLE: 6a, -3c

Variable:A letter or symbol that represents an unknown/changing value
EXAMPLE: -2z, 4xy , 6,st

Constant: A term that is representing by a number.
EXAMPLE: 6X-3, 4 cubed+6

Polynomial:An algebraic expression made of terms connected by addition or subtraction.
EXAMPLE:4xcubed-6x squared+3x-8

Monomial:A polynomial made up of one term.
EXAMPLE: -6, j, 3x, 4x squared, -5ab

Binomial:A polynomial made up of two terms.
EXAMPLE: 6xsquared+6x, 3xy-3y, 2x+6-7-4m

Trinomial:A polynomial made up of three terms.
EXAMPLE: 6x squared-6x-6

HOMEWORK!!!
Get Ready in Textbook, if you haven't done it already.
First Sheet of the handouts (white, Chart)
All of the BEFORE on the Chapter five Self Assessment
5.1 Homework Book

MANGA HIGHH!!!
MANGA HIGHH!!!
MANGA HIGHH!!!
MANGA HIGHH!!!
MANGA HIGHH!!!

Krizna's Math Question

2.4 Question # 24

24.The distance d in kilometers , that a person can see a person can see across the ocean to the horizon is given by the formula d = square root of 12.74 x h. In the formula h is the height, in meters, of the persons eye above that the water.Calculate the distance that each of the following people can see across the ocean to the horizon. Express each answer to the nearest tenth of a kilometer.

A)Adele is sitting on a lifeguard station at the edge of the ocean. Her eyes are 4.1m above water.

Answer:14.6 km

D=square root of 12.74 x 4.1 m

D=14.634186 m

Nearest tenth:14.6 km

D=14.6 km

B)Brian is standing at the waters edge .His eyes are 165 cm above the water.

Answer:588.9 km

D=square root of 12.74 x 165 cm

D=588.9367538

Nearest tenth: 588.9 km

D=588.9 km

C)Yvonne is the pilot of an aircraft flying 5km above the coastline.

Answer:17.8km

D=square root of 12.74 x 5 km

D=17.8465683

Nearest Tenth: 17.8 km

D=17.8 km

Krizna's Math Question

2.2 Problem Solving with Rational Numbers in Decimal Form.

11.One January day in Penticton, British Columbia, the temperature read -6.3*C at 10:00 am, and 1.4*C at 3:00 pm

A)What was the change in temperature?

how to solve:you subtract the temperature from 3:oo pm from 10:00 am because the temperature is decreasing.

Step 1:Estimate.

Step 2 Calculate.

Answer:The change in tempurature is 7.7*C

B)What was the average rate of change in tempurature?

how to solve:you divide the answer of (A) (change in temperature) by five because the hours of temperature between ten and three is five.

Step 1 Estimate.

Step 2 Calculate

Answer:1.54*C is the average rate of change in temperature every hour.