Write a linear function for the data given below.

Given function . Find the value of x when 

For such questions, we should know about the concept of functions.

Write the equation of a line perpendicular to y = 3x - 8 and that passes through the point (-3, -9)

For such questions, we should know different formulas required to find lines. We should also know the concept of slope of different lines.

In the xy-plane, line k with equation y = mx + b, where m and b are constants, passes through the point (-3,1). If line k is perpendicular to the line with equation y = -2x + 3 , what is the value of b?

The line graph shows the wind speed recorded every 2 hours in a town, where x is the number of hours after midnight and  is the wind speed, in miles per hour (mph). What is the greatest average change in wind speed, in miles per hour per hour, between two readings shown in the graph?

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

An element is a nonmetal if it is classified as a halogen, noble gas, or other nonmetal. The ratio of all nonmetals to all elements is 10 to k. What is the value of k ?

As of 2016, there were 118 known elements. These elements can be described with 10 classifications as summarized in the given table.

The percentage of the 10 classifications that have 11 or more elements is . What is the value of p ?

The expression 3xy(2y + 3) is equivalent to , where b is a constant. What is the value of b ?

If (x, y) is the solution to the given system of equations, what is the value of 10x - y ?

A one-digit positive integer will be chosen at random. What is the probability that the chosen integer will be greater than 7 ? (Express your answer as a fraction or decimal, not as a percent.)

Rectangle A has an area of 64 square meters. The length and width of rectangle B are 3 times the corresponding length and width of rectangle A. What is the area, in square meters, of rectangle B ?

In the xy-plane, the graph of the given equation is a circle. Which point (x , y) lies on the circle?

Which equation is the most appropriate exponential model for the data shown in the scatterplot?

A sample of strontium-90 will radioactively decay to half the original quantity in approximately 29 years. The function  above models the amount of strontium- 90 , in grams, that remains t years after a 10-gram sample starts to decay. Which of the following is the best interpretation of the number  in the function?

One of the two equations in a linear system is given. The system has no solution. Which equation could be the second equation in this system?

The histogram shows the distribution of book prices, in dollars, for the 27 books for sale at a store.

The first bar represents books with prices of less than . The second bar represents books with prices of at least  but less than , and so on. In which interval will the median price of books for sale be included when the book that costs at least  but less than  is sold?