Solving Linear Systems Practice
1. Without graphing, show that (1,3) a point on y = 2x + 1. Is it the solution to y=2x+1
2. A company produces compact discs. Each disc sells for $9. The income, C dollars,
from the sales of x dis
Substitution Word Problems
Find a Point of Intersection (POI) by Substitution
Find the POI by using substitution (warm-up). Check your answers.
3x + 2y = 1
y = -x + 3
Shamil wants to hire a truck to so some moving for
Equations in Applications
Solving Equations: Application Practice
Answer each of the following questions IN YOUR NOTES.
1. Volcanoes and geysers illustrate that Earths interior is very hot. The formula
T = 10d +
Um? 4 doivmg equations
g Solve each formula tony; 21
, Zr .
icfiét = 309 + 1>
Solve the perimeter formula P = 2(1 +, w).
to) Determine the value of w when P = 24 and
l = 9.
(:lhe total cost o