3. Slope-Intercept Form
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Rewrite the equation in slope-intercept form.
Slope: 9
y-intercept: - 15
Let's recall the slope-intercept form of a line.
y= mx+ b
Distribute 6
Multiply
.LHS /(- 2).=.RHS /(- 2).
Write as a difference of fractions
Put minus sign in front of fraction
a* b/c=a/c* b
- a/- b= a/b
Calculate quotient
Commutative Property of Addition
We rewrote the given equation in slope-intercept form. y=9x-15 ⇔ y= 9x+( - 15) We can see that the slope is 9 and the y-intercept is - 15.