Linear Equations in the real world

Problem 1) A cab company charges a $3 boarding rate in addition to its meter which is $2 for every mile. What is the equation of the line that represents this cab company's rate?

Answer

Problem 2) A cab company charges a $5 boarding rate in addition to its meter which is $3 for every mile. What is the equation of the line that represents this cab company's rate?

Answer

Slope of this line : 3
y-intercept of line: 5
Equation of this line(slope intercept form) : y = 3x +5

Problem 3) A cab company charges a $3 boarding rate in addition to its meter which is $½ for every mile. What is the equation of the line that represents this cab company's rate?

Answer

Slope of this line : ½
y-intercept of line: 3
Equation of this line(slope intercept form) : y = ½x +3

Problem 4) A cab company charges a $4 boarding rate in addition to its meter which is $ ¾ for every mile. What is the equation of the line that represents this cab company's rate?

Answer

Slope of this line : ¾
y-intercept of line: 4
Equation of this line(slope intercept form) : y = ¾x + 4

Problem 5) A cab company does not charge a boarding fee but then has a meter of $4 an hour.What equation represents this cab company's rate?

Answer

Slope of this line : 4
y-intercept of line: 0
Equation of this line(slope intercept form) : y = 4x

Problem 6) A cab company does not charge a boarding fee but then has a meter of $4 an hour.What equation represents this cab company's rate?

Answer

Slope of this line : 4
y-intercept of line: 0
Equation of this line(slope intercept form) : y = 4x

Problem7) A cab company charges a $1 boarding fee and has a meter of $1/3 an hour.What equation represents this cab company's rate?

Answer

Slope of this line : 1/3
y-intercept of line: 1
Equation of this line(slope intercept form) : y = 1/3x+1