Chapter 6 Linear Law (6.1)

Which of the following graph shows a graph of linear relation?

• 
• 
• 
• 

The following graph shows part of a straight line obtained from plotting XY against X. Express y in terms of x.

• $y=-\frac{3}{2}+\frac{11}{x}$

• $y=-\frac{2x}{3}+\frac{28}{3}$

• $xy=-\frac{3x}{2}+11$

• $xy=-\frac{3x}{2}+5$

Based on the graph, find the gradient and Y-intercept.

• $m=\frac{4}{3},c=\frac{9}{4}$

• $m=\frac{3}{4},c=\frac{15}{4}$

• $m=-\frac{3}{4},c=\frac{15}{4}$

• $m=\frac{3}{4},c=\frac{9}{4}$

Write the equation of line of best fit based on the given graph.

• $\frac{1}{y}=x^2+5$

• $y=x^2+5$

• $y=\frac{1}{x^2+5}$

• $\frac{1}{y}=x^2+5$

From the line of best fit in the diagram, find the value of y when x = 4.5.

• 0.6400

• 4.365

• 1.585

• 0.2000