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1.1-1.2 Graphs and Linear Equations
Do Now: Graph the three lines x = 1, y = -3 and y = 2x + 3
Example 1: Graph y = x2 – 4 using a t chart
Example 2: Graph the following using a t chart
a) y = |x|
b) y = |x| - 1
b)
c) y = |x| + 2
An ___________________________ of a graph is the x-coordinate of a
point where the graph intersects the x-axis. The corresponding
________________________ is always zero.
A _________________________ of a graph is the y-coordinate of a point
where the graph intersects the y-axis. The corresponding
______________________ is always zero.
A ____________________________________ is an equation that can be
in the form
ax + b = 0
where a and b are real numbers and a  0
Example 3: Solve the equation 10x – 600 = 400
Solve a Linear Equation
1)
2)
3)
4)
Example 4: Solve the equation 2(x – 3) – 17 = 13 – 3(x + 2)
Example 5: Solve the equation 4(2x + 1) – 29 = 3(2x – 5)