5.1-5.3 Review

Slope Intercept Form

100

slope: 3

y-intercept: (0, 4)

y = 3x+4

200

slope: -5

y-intercept: (0, -6)

y = -5x-6

300

slope: 1/3

y-intercept: (0, 0)

y = 1/3x

400

(0, 4) and (5, 8)

y = 4/5x + 4

500

(0,0) and (6, 36)

y = 6x

Point-Slope Form

100

slope: 5

point on the line: (3, 6)

y-6 = 5(x-3)

200

slope: -5

point on the line: (-3, -6)

y+6=-5(x+3)

300

slope: 1

point on the line: (0, 0)

y = x

400

(4, 7) and (6, 11)

y-7=2(x-4)

or

y-11=2(x-6)

500

(-2, 8) and (-8, -10)

y-8 = 3(x+2)

or 

y+10 = 3(x+8)

Point-Slope => Slope Intercept

100

Put this equation into slope-intercept

y-2=3(x+4)

y=3x+14

200

Put these points into slope-intercept form for the line that goes through (1, 2) and (4, 8)

y=2x

300

Put these points into slope-intercept form for the line that goes through (3, 7) and (9, 13)

y=x+4

400

Put these points into slope-intercept form for the line that goes through (2, 9) and(-4, 0)

What is the y-intercept?

y = 3/2x+6

y-intercept: (0, 6)

500

Put these points into slope-intercept form for the line that goes through (-1, -4) and(-4, -13)

What is the y-intercept?

y=3x-1

y-intercept: (0, -1)

What's the slope and y-intercept

100

y=3x + 1

slope:

y-intercept:

y=3x + 1

slope: 3

y-intercept: (0,1)

200

y=-4x -3

slope:

y-intercept:

y=-4x -3

slope: -4

y-intercept: (0, -3)

300

y= x + 300

slope: 

y-intercept:

y= x + 300

slope: 1

y-intercept: (0, 300)

400

y= -4/3x + 25

slope: 

y-intercept:

y= -4/3x + 25

slope: -4/3

y-intercept:(0, 25)

500

y = x

slope:

y-intercept:

y = x

slope: 1

y-intercept: (0,0)

What's the slope and point

100

y-1 = 4(x-3)

slope:

point:

y-1 = 4(x-3)

slope:4

point:(3, 1)

200

y+4 = 3(x+2)

slope:

point:

y+4 = 3(x+2)

slope: 3

point: (-2, -4)

300

y = 1/3(x+2)

slope: 

point:

y = 1/3(x+2)

slope: 1/3

point: (-2, 0)

400

y = x

slope: 

point:

y = x

slope: 1

point: (0,0)

500

y+5= 7(x+3)

slope: 

point:

y+5= 7(x+3)

slope: 7

point: (-3, -5)