Functions - practice problems - page 4 of 295
In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. The set of inputs is commonly referred to as the domain, while the set of outputs is referred to as the range.A function is typically represented by an equation that describes the relationship between the input and output. For example, the equation y = 2x + 1 describes a linear function, where y is the output and x is the input. The input (x) can be any real number, and for each value of x, there is a corresponding output (y) given by the equation.
Functions can also be represented graphically, with the input values on the x-axis and the output values on the y-axis. A graph of a function is a set of ordered pairs (x, y) that satisfy the equation.
There are different types of functions, such as polynomial functions, exponential functions (y=e^x), and trigonometric functions (sin,cos,tan ...), each with their own unique properties and behaviors.
Number of problems found: 5892
- The ratio 16
Express the following ratio in simplest form: 90:100 - A road
A road on a map measures 8cm long. The scale of the map is 25000. Calculate the actual length of the road - Usain
Usain and Kyle rented a house together for 3 years. Usain paid more rent because he had a bigger room. They always split the rent at a ratio of 4:3. They paid £30247 in rent over this period. How much of this did Usain pay? - The intensity
The light intensity on a screen is inversely proportional to the square of the distance between the screen and the light source. If a screen is illuminated by a light source 20 m away, the intensity is one-fifth of what is required. Where should the light
- Express 72
Express the percentage to a fraction. 15% - A fish 2
A fish vendor sells 5/7 kilos of tilapia for P125.00. If you will buy 5 kilos of tilapia, how much will it cost? - A mortgage
A mortgage company charges borrowers $3.50 plus 2% of the loan amount. What is the total charge to get a home loan of $190,000? - Solution mg/ml
If 70 ml of solution contains 280mg of drug, how many milligrams of drugs are in 50 ml of solution? - Convert 8
Convert 11/2 into a percent?
- Eggs in basket
If the eggs in a basket are removed twice at a time, one will remain. Two eggs will remain if the eggs are removed three at a time. If the eggs are removed four, five, or six at a time, the three, four, and five eggs will remain, respectively. However, no - HCF of polynoms
Find the HCF of the given expression: 2a²b²c4, 2a4b³c³ and 4a²b³ - Compound interest
Joel borrowed $3208.5 on November 2, 2021, at 3.6% p.a. How many days would it take for him to repay the loan if he made a payment of $ 3,720.34? Round up to the nearest day. - Tavarius
Tavarius scored an 85% on his math exam. If there were 20 questions on the exam, how many did he get correct? - Marcos 2
Marcos is bringing 36 cookies to his book club, but he's not sure how many people will be there. He wants to write an equation that shows how many cookies each person will get in terms of how many people (symbol n) are there.
- Three 241
Three-fifths of the t-shirts in a t-shirt shop are blue. Five-eights of those T-shirts are on sale. One-third of the blue of the blue shirts that are on sale are size medium. What fraction of the shop's blue T-shirts are on sale and size medium? - A recipe 6
A recipe requires 2 cups of milk for every 3 cups of flour. If you use 8 cups of milk, how many cups of flour do you need? - A ferry
A ferry with a capacity of 10 people takes a group of 13 men and 7 women across a river. Find the number of ways in which the group may be taken across the if all women go on the first group. - Line equation:
Line equation: y-3=8/9(x-5) Solve for slope - Nelson
Nelson has a weekly salary of $445.86 and is self-employed. Use 7.51% for not self-employed and 12.3% for self-employed for the Social Security Tax. How much Social Security should be withheld?
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