A telephone pole is 45 feet tall and casts a 20. foot shadow. A street lamp next to the
telephone pole casts a 12 foot shadow.
Calculate the height of the street lamp.

I cant figure this out how do i find the height of the lamp?

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.

where is the option given

a. do i have the cash i need for down payment?

b. do i want to use my savings instead of credit?

c. can i afford the car?

d. can i use the credit in a better way?

e. could i put off buying the car for a while?

f. what will happen if i don't buy it now?

g. what are the costs of using credit?

hope this (: