Aphoto is printed on an 11-inch by 13-inch piece of paper. the photo covers 80 square inches and has a uniform border. what is the width of the border? don't use a graph tool

The width of the border is

Step-by-step explanation:

Let

x-----> the width of the border

we know that

The area of the photo is equal to

solve the quadratic equation

The formula to solve a quadratic equation of the form is equal to

in this problem we have

so

substitute in the formula

 -----> not make sense

 -----> solution

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.