Question

Use a graphing device to graph both lines in the same viewing rectangle.

(Note that you must solve for yin terms of xbefore graphing

if you are using a graphing calculator.) Solve the system either by

zooming in and using trace or by using Intersect. Round

your answers to two decimals.

$\left\{\begin{array}{l}0.21x+3.17y=9.51\\ 2.35x-1.17y=5.89\end{array}\right.$

Short answer

x = 3.89

y = 2.76

Step-by-step solution

Step 1. Write down the concept.

Solving for y in terms of x, we get an equivalent system,

y = 3 – 0.06x

y = -5.03 + 2x