Question 1

The gradient of a straight-line graph is -2. You know that the graph goes through the point (1, -2). What is the value of the y-coordinate when x = 3?

Accepted Answer

A)  2 
B)  0 
C)  -4 
D)  -6 
A)  2 
B)  0 
C)  -4 
D)  -6 D

Question 2

The points (2, 4) and (5, 16) both lie on the same straight-line graph. Find the value for the gradient.

Accepted Answer

A)  12 
B)  3 
C)  0.25 
D)  2 
A)  12 
B)  3 
C)  0.25 
D)  2 B

Question 3

A straight line goes through the points (2, 6) and (4, 10). Determine the equation of the graph.

Accepted Answer

A)  y = 2x + 2 
B)  y = 2x + 4 
C)  y = 3x + 2 
D)  y = 3x + 4 
A)  y = 2x + 2 
B)  y = 2x + 4 
C)  y = 3x + 2 
D)  y = 3x + 4 A

Question 4

What name is given to the point at which a straight line crosses the vertical axis?

Accepted Answer

A)  Y-intercept 
B)  X-intercept 
C)  Origin 
D)  Gradient 
A)  Y-intercept 
B)  X-intercept 
C)  Origin 
D)  Gradient

Question 5

At what point does the graph y = 2x - 3 cross the vertical axis?

Accepted Answer

A)  0 
B)  2 
C)  -3 
D)  -6 
A)  0 
B)  2 
C)  -3 
D)  -6

Question 6

y = 6x + 3 is an example of what type of function?

Accepted Answer

A)  Constant function 
B)  Linear function 
C)  Quadratic function 
D)  Cubic function 
A)  Constant function 
B)  Linear function 
C)  Quadratic function 
D)  Cubic function

Question 7

Determine the equation of the straight line that goes through the points (2, 8) and (6, 10).

Accepted Answer

A)  y = 2x + 5 
B)  y = 2x + 7 
C)  y = 0.5x + 5 
D)  y = 0.5x + 7 
A)  y = 2x + 5 
B)  y = 2x + 7 
C)  y = 0.5x + 5 
D)  y = 0.5x + 7

Question 8

What name is given to the slope of a linear function?

Accepted Answer

A)  Y-intercept 
B)  X-intercept 
C)  Origin 
D)  Gradient 
A)  Y-intercept 
B)  X-intercept 
C)  Origin 
D)  Gradient

Question 9

In the equation y = a + bx which letter represents the y-intercept?

Accepted Answer

A)  y 
B)  a 
C)  b 
D)  x 
A)  y 
B)  a 
C)  b 
D)  x

Question 10

If y = 3x + 4, give the value of y if x equals 5.

Accepted Answer

A)  14 
B)  11 
C)  19 
D)  15 
A)  14 
B)  11 
C)  19 
D)  15

Exam 12: Linear Functions and Graphs

The gradient of a straight-line graph is -2. You know that the graph goes through the point (1, -2). What is the value of the y-coordinate when x = 3?

The points (2, 4) and (5, 16) both lie on the same straight-line graph. Find the value for the gradient.

A straight line goes through the points (2, 6) and (4, 10). Determine the equation of the graph.

What name is given to the point at which a straight line crosses the vertical axis?

At what point does the graph y = 2x - 3 cross the vertical axis?

y = 6x + 3 is an example of what type of function?

Determine the equation of the straight line that goes through the points (2, 8) and (6, 10).

What name is given to the slope of a linear function?

In the equation y = a + bx which letter represents the y-intercept?

If y = 3x + 4, give the value of y if x equals 5.

Introduction to Business Mathematics and Statistics

Sampling and Data Collection

Data and Their Accuracy

Frequency Distributions and Charts

General Charts and Graphs

Arithmetic Mean

Median

Mode and Other Measures of Location

Measures of Dispersion and Skewness

Standard Deviation

Quantiles and the Quartile Deviation

Regression Techniques

Correlation Techniques

Time Series Model

Time Series Trend

Seasonal Variation and Forecasting

Index Relatives

Composite Index Numbers

Special Published Indices

Interest and Depreciation

Present Value and Investment Appraisal

Annuities

Functions and Graphs

Linear Equations

Quadratic and Cubic Equations

Differentiation and Integration

Cost, Revenue and Profit Functions

Set Theory and Enumeration

Introduction to Probability

Conditional Probability and Expectation

Combinations and Permutations

Binomial and Poisson Distributions

Normal Distribution

Linear Inequalities

Matrices

Inventory Control

Network Planning and Analysis

Filters