Point-Slope Form

Point-Slope Form

Poll

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

• Animals

• Electronics

Multiple Choice

What is the name of this equation of a line

Ax + By = C

• Standard Form

• Point Slope Form

• Slope Intercept Form

Multiple Choice

What is the name of this equation of a line

y = mx + b

• Standard Form

• Point Slope Form

• Slope Intercept Form

Multiple Choice

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

• Slope

• X-Intercept

• Y-Intercept

• Zero

Multiple Choice

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

• Slope

• X-Intercept

• Y-Intercept

• Zero

Multiple Choice

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

What is the name of this equation:

• Standard Form

• Point-Slope Form

• Slope-Intercept Form

Multiple Choice

Using Point Slope form, plug in the values:

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

• y - 7 = -4(x + 1)

•  y - 1 = -4(x + 7)

• y - 4 = -7(x + 1)

Multiple Choice

Distribute

• y - 7 = 4x + 4

• y - 7 = -4x - 1

• y - 7 = -4x - 4

Multiple Choice

Solve for y

• y = -4x + 3

• y = 4x + 3

• y = -4 + 3x

Multiple Choice

Using Point Slope form, plug in the values:

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

• y + 2/3 = 5( x + 6)
  

• y + 5 = 2/3( x + 6)

• y + 6 = 2/3( x + 5)
  

Multiple Choice

Solve for y

• y = 2/3x - 1

• y = 2/3x + 9

• y = 2/3x + 4

Multiple Choice

Using Point Slope form, plug in the values:

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

• y - 5 = 6( x - 2)
  

• y - 6 = 2( x - 5)

• y - 2 = 5( x - 6)
  

Multiple Choice

Distribute

y - 6 = 2( x - 5)

• y - 6 = 2x - 10

• y - 6 = 2x + 10

• y - 6 = 2x - 5

Multiple Choice

Solve for y

y - 6 = 2x - 10

• y = 2x - 4

• y = 2x - 10

• y = 2x - 16

Multiple Choice

What is this the equation for?

• Slope

• Line

• Point Slope Form

Multiple Choice

( 3 , 2) and ( 5, 8)

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

• 1

• 2

• 3

• 4

Fill in the Blanks

Find the slope

Fill in the Blanks

Find the slope

Multiple Select

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

• y = 2x + 5

• y = 5x + 25

• y = 2 + 5x

• y = 5 + 2x

Multiple Choice

Using the equation from the last slide

y = 2.00x + 5

What is the cost of a 4 mile ride

• $10

• $11

• $12

• $13

Open Ended

The Jones' are purchasing a new home. The closing cost is $249 plus $.03 times the sale price of the home.

If C= the final price

and s= selling price

write a linear equation for this situation using C and s as variables.

Multiple Choice

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

• a = 5y + 6o

• o = 5a + 6u

• y = 5a + 6o

• ao = 5y + 6y

Fill in the Blanks

Using the equation from the last problem

y = 5a + 6o

How much did he spend if apples cost $1 each and Oranges cost $2 each

Open Ended

The baseball concession stand sells soft pretzels for $4.50 and bags of popcorn for $3.25.

If...

s = soft pretzels sold

p = popcorn sold

T= Total money made

Write an equation using the variables above for the total money made for the concession stand.

Poll

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

• Dont Understand it

• Getting there

• Understand it completely

Multiple Choice

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

(3, 4) m = 6

Y - y1 = m(X - x1)

• y - 6 = 4( x - 3)

• y - 3 = 4( x - 6)

• y - 4 = 6( x - 3)

• y - 4 = 3( x - 6)

Multiple Choice

Find the slope between these 2 points:

( 4 , 6) and ( 5, 10)

• 1

• 2

• 3

• 4

Open Ended

You have an assignment on this topic under your Classwork for today. You can use Kami to do it or you can do it on paper and then take a picture and send it to me through Remind or email or attach it to the assignment. Respond with when you will be working on this assignment. (email if you need help with uploading a picture)