Point-Slope Form

Would you rather be able to control animals (but not humans) with your mind or control electronics with your mind?

What is the name of this equation of a line

Ax + By = C

What is the name of this equation of a line

y = mx + b

What does the b stand for, the starting point when graphing?

What does the m stand for, the the rate of change when graphing?

 $Y\ -y1\ =\ m\left(X\ -\ x1\right)$  

What is the name of this equation:

Using Point Slope form, plug in the values:

 $Y\ -\ y1\ =\ m\left(X\ -\ x1\right)$   

Distribute

Solve for y

Using Point Slope form, plug in the values:

 $Y\ -\ y1\ =\ m\left(X\ -\ x1\right)$   

Solve for y

Using Point Slope form, plug in the values:

(5, 6)     m = 2
 $Y\ -\ y1\ =\ m\left(X\ -\ x1\right)$   

Distribute

y - 6 = 2( x - 5)

Solve for y

y - 6 = 2x - 10

What is this the equation for?

( 3 , 2) and ( 5, 8)

m = (8 -2) / (5 - 3)

Write an equation of this situation in slope-intercept form:

y = mx + b

A cab ride costs $5 plus a $2 per mile driven

y = COST

x = miles driven

Using the equation from the last slide

y = 2.00x + 5

What is the cost of a 4 mile ride

James bought 5 apples and 6 oranges from Kroger.

Write an equation for this situation with

a= Apple price

o = Orange price

y = total spent

How well do you understand point-slope form of a linear equation?

Plug in the point and slope to the Point-Slope Form Equation

(3, 4) m = 6

Y - y1 = m(X - x1)

Find the slope between these 2 points:

( 4 , 6) and ( 5, 10)