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# Category Archives: Linear Equations

## Linear Quadratic Exponential Equation Comparison from Table of Ordered Pairs example question

Determine whether the given set of ordered pairs (x, y) below follows a Linear, Quadratic or Exponential Equation such as

Then, find the missing constants in that Equation.

(x, y)

(3, 81)

(4, 144)

(5, 225)

(6, 324)

(7, 441)

Solution to this Table of Values Linear Quadratic Exponential Equation practice problem is given in the video below!

## Linear Quadratic Exponential Equation Comparison from Table of Ordered Pairs example problem

Given the set of ordered pairs (x, y) below determine whether the Graph shows a Linear, Quadratic or Exponential Equation such as

Then, find the missing constants in that Equation.

(x, y)

(1, -3)

(2, -9)

(3, -27)

(5, -243)

Solution to this Table of Values Linear Quadratic Exponential Equation practice problem is given in the video below!

## Linear Function Word Problem example question

It is common that a piece of equipment has a residual value after it has been depreciated over its entire lifetime.

(a) Find the rule for V(t), the value of a piece of equipment, assuming that the value at time t = 0 is Vo and that the value after 20 years is R.

(b) Use the rule to find the value after 12 years of a piece of equipment originally valued at \$7500, assuming that it has a residual value after 20 years of \$500.

Solution to this Linear Function practice problem is provided in the video below!

## Linear Equation: Percent Solution example question

A 6-gallon radiator is filled with a 40% solution of antifreeze in water. How much of the solution must be drained and replaced with pure antifreeze to obtain a 65% solution?

Solution to this Linear Equation practice problem is given in the video below!

## Linear Equation: Upstream Downstream example problem

A crew of 8 can row 20 kilometers per hour in still water. The crew rows upstream then returns to its starting point in 15 minutes. If the river is flowing at rate 2 kilometers per hour, how far did the crew row?

Solution to this Linear Equation practice problem is given in the video below!

## Linear Equation: Rate Time Distance example

At 1:30 p.m., Megan starts walking at a rate 4 miles per hour along a straight line path. Ten minutes later, Patrick starts walking in opposite direction at a rate 3 miles per hour along the same line path. If both carry a walkie-talkie whose maximum range is 0.9 miles, at what time will their connection be lost?

Solution to this Linear Equation practice problem is given in the video below!

## Linear Equation: Youtube Views HARD example problem

A recipe video has 7,425 views and gets 590 views in 2 days, while a music video has 5,475 views and gets 495 views in 3 days. Assuming the rate of views for both videos was constant, how many days ago did these videos have the SAME number of views?

Solution to this Linear Equation practice problem is given in the video below!

## System of Linear Equations: Elimination Method example

Solve the system of Linear Equations by Elimination:

Solution to this System of Linear Equations practice problem is given in the video below!

## System of Linear Equations: Substitution Method example question

Solve the system of Linear Equations by Substitution:

Solution to this System of Linear Equations practice problem is given in the video below!