Olivia is considering membership to the Regional Teachers' Credit Union so that she can save money on a loan. The credit union will lend her $8,000 for three years at 2.25% APR. The same loan at her savings bank has an APR of
2.9% How much would Olivia save in finance charges if she joined the credit union and took out her loan there?
Round to the nearest 10 dollars.

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.

the correct answer would be c