Slope – Intercept Form y = mx + b m represents the slope b represents the y-intercept.
What is Slope-Intercept Form? m = slope b = y-intercept (x, y) = solution for equation y = mx + b.
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Transcript of What is Slope-Intercept Form? m = slope b = y-intercept (x, y) = solution for equation y = mx + b.
What is Slope-Intercept Form?
m = slopeb = y-intercept
(x, y) = solution for equation
y = mx + b
Graph the equation.
432
xy
x
y
Section 8.9
Systems of Equations
Solve the system of equations by graphing.
x
y
821
xy
22 xy
Solve the system of equations by graphing.
x
y
532
xy
5xy
Solve the system of equations by graphing.
x
y
Solve the system of equations by graphing.
x
y
When might it be difficult to get an accurate answer by graphing the
system of equations?
If you go to the gas station and buy a pop and your total rings up to $1.00,
which would the clerk accept?
or
Substitution Method
=
Solve the system of equations by substitution.
Graph to see if the solution is true.
x
y
Solve the system of equations by substitution.
Solve the system of equations by substitution.
931
yxxy
Homework
417 9 – 26 all