Answer:
Let x represents the hours and y represents the total fees(in dollars)
As per the statement:
(a)
For a house call, a veterinarian charges $70, plus $40 an hour
"$40 an hour" means 40x
then;
the equation we get;
[tex]y = 40x + 70[/tex] .....[1]
(b).
Find the x-intercept.
x-intercept states that the graph cross the x-axis.
Substitute y = 0 in the equation and solve for x;
we get;
[tex]x = -\frac{7}{4}[/tex]
y-intercept states that the graph crosses the y-axis i.e
Substitute x= 0 in the equation and solve for y;
[tex]y =70[/tex]
Therefore, x-intercept and y-intercept of equation [1] are:
[tex]-\frac{7}{4}[/tex] and 70
