Fred's art project involves a series of parallel stripes. If he starts by drawing the line 8x+2y=7, select all the equations that could represent lines that could also be drawn for his art project.

Options:

A.

B.

C.

D.

E.

B.

C.

D.

Step-by-step explanation:

Given

Required

Select all equations that could be used.

Equation that could be used in place of must have the same slope.

Calculating the slope of

Make y the subject

Using y = mx + b

Where

The slope is -4

Option A.

Open bracket

Collect Like Terms

Make y the subject

The slope of this line is 4;

Hence, it can not be used.

Option  B.

The slope of this line is -4;

Hence, it can be used.

Option  C.

Solve for4y

Solve for y

The slope of this line is -4;

Hence, it can be used.

D.

The slope of this line is -4;

Hence, it can be used.

E.

Solve for 2y

Solve for y

The slope of this line is -2;

Hence, it can not be used.

From the calculations above, equations B, C and D are equivalent

answer: x=3 and y=4

step-by-step explanation:

the answer is 13 cm