Units 2.4 & 2.5
Solve: 2(x + 1) = 18
x = 8
True or False: A proportionality passes through the origo
True
in y = kx + m
k stands for...?
Slope
Lutning
Riktningskoefficient
3,2 x 0,2
0,64
What am I doing when I turn 3(x-6) into 3x-18?
I am using the distributive property
Write five million in scientific notation
Year 8 unit 1.7
5 x 106
Solve: 3(x -5) = 45
x = 20
Fill in the blank: SHOW YOUR _____
Work!!!
Write the following equation in slope-intercept form: 5(x + 2y) = 20
y = -1/2x + 2
5 / 0,001
5000
What am I doing when I turn 3x-18 into 3(x-6)?
Factoring/ factorizing/ faktorisera
What year was Ms Ohlstrom born?
1984
Solve: 21 + x = 2(x - 6)
x = 33
When solving an equation or inequality: "Move all of the _____ to one side and all the _____ to the other"
variables / constants
Find the slope: 2(3x - y) = -10
3
3/4 + 5/6
(Simplify your answer to a mixed number)
19/12 = 1 7/12
x2 + 18x + 81 is a special type of expression. What is its name?
a quadratic expression
(half credit for trinomial)
You toss a coin twice.
a) What is the probability that you get heads and heads?
b) What is the probability that you get heads and tails?
Year 8 Unit 2.7
a) 25%
b) 50%
Solve: (3x-5)/4 = 5
x = 25/3
The last step to solving an equation or inequality is to(3 words):
______ ___ ________
Isolate the variable
What is the slope of the following equation:
2x + 2y = 8
slope = -1
0,72 - 0,62
0,13
Simplify: -(x + 7) -2(4x + y)
-9x -7 -2y
What year was Ms Ohlstrom in grade 9?
1998 and 1999
Solve: (3 - 3x)/7 = 6
x = -13
Ms Ohlstrom's tutorial is when (day and time) and where?
Mondays from 15-16 in room 516
What's the slope of the line passing through (3,9) (5,4)
slope: -5/2
7/8 - 5/6 - 1/3
-7/24
A circle has the radius of 6cm. A circle sector is formed with a 60 degree angle. What is the area of the circle sector?
Year 8 Unit 4.3
approximately 18,84 cm2