A quadratic equation can have
1) 2 possible roots
2) 1 root
3) No roots we will discuss this situation in the near future.
The standard form of a quadratic equation is : .
When you are asked to solve a quadratic equati
So far we learned about two form of the quadratic function:
1) Standard form
2) Vertex form
However there is one more form that we will explore today.
This is the Factored form given by .
How can we determine th
Quiz Ratios, Rates, Percents
1. Write each ratio in simplest terms. [2 marks]
15 : 35 =
10 : 8 : 6 =
2. Write two equivalent ratios to the given ratio. [1 mark]
45 : 9 =
3. Write a rate to represent the following: [1 ma
A ratio is a comparison of two numbers with the same units.
In the word Georgetown there are 6 consonants and 4 vowels. We can write the ratio in different
ways. The number of consonants to vowels in the word Georgetown is
Ratio: A method of comparing two values
1) Write the ratio of:
a. Circles to squares
b. Squares to Triangles
c. Triangles to Circles to Squares
2) Mrs. Jaswal has three apples and five oranges.
There are many real-world applications of percents that we come across in our everyday lives.
To find the percent of a given number, we need to convert that percent to a decimal and
Examples: Determine each of the following.
Last time we saw that a ratio was a comparison _.
Today, we will talk about rates.
A rate is a comparison of two numbers expressed in different units.
A rate is usually written as a unit rate, in which the second term is 1. Fo
A mortgage on a house requires a down payment of at least 10% for people who are not first
time buyers. Calculate a down payment of 12% for each of the following houses:
Today we will work on converting between fractions, decimals and percents. We have
already worked with fractions and decimals, but need to come up with a simple definition
Definition: Percent means
The word percent means out of 100. (34% means 34 out of 100)
Find each percent:
d) 11 out of 30
Express each percent as a decimal.
b) 12 % of 20
c) 95% of 45
Find each amount.