Unit 2 Review

Slope

100

Describe a 0 slope

It is a horizontal line

200

What is the slope formula?

m=(y₂-y₁)/(x₂-x₁)

300

The slope of a line is 4. What is the slope of a line perpendicular to it?

m= -1/4

400

What is the slope of a line passing through (8,-3) and (-4,-12)

3/4

500

Which line has a steeper slope?

Line 1: (-6,7) and (9,-3)

Line 2: (-9,9) and (3,5)

Line 1 is steeper

Angles

100

What kinds of angles are created by two lines intersecting? (Multiple correct answers)

Linear pairs, vertical angles, supplementary angles, congruent angles.

200

See image.

What is the relationship between angles 2 and 6?

They are corresponding angles

300

Name three angles congruent to angle 6.

Angles 2, 3, and 7

400

See image: What is the value of x?

angle 3: (2x)º

Angle 8: 54º

x= 63

500

See image: What are the values of x and y?

Angle 3: (x+12)º

Angle 4: yº

Angle 8: 114º

x:54

y:114

Equations of lines

100

Write an equation in slope-intercept form of a line containing a slope of 12 and point (0,4)

y=12x+4

200

Write the equation of a line in point-slope form of a line containing slope 4 and y-intercept -3

y+3 = 4 (x - 0)

or

y+3 = 4x

300

Write the equation of a line in slope-intercept form going through point (-2,-5) and having a slope of 5/7.

y=5/7x - 25/7

400

Write the equation of a line in slope-intercept form that goes through points (2,4) and (-4,-11)

y=5/2x - 1

500

Write an equation in slope-intercept form of a line that passes through (-7,-4) and is perpendicular to y=1/2x +9

y=-2x-18

Distance between point/line

100

What is the y-intercept of a line containing point (3,2) and having a slope of 2?

-4

200

What is the equation of a line passing through points (4,18) and (-2,9)

y=3/2x +12

300

What is the equation of a line perpendicular to y=1/3x-1 that passes through point (4,1)

y=-3x+13

400

What is the distance between points (4,9) and (2,-3)

Sqrt(148) or ~12.2 units

500

Slove the system of equations

y=1/2x+1

y=-2x+16

(6,4)

Grab bag

100

What is the slope of a line going through points (-11,4) and (-1,8)?

2/5

200

What is the y-intercept of line:

y-5 = 1/2 (x +1)

5.5 

300

An angles measures 28º. What are the measures of the angles forming a linear pair with it and the angles to which it is vertical?

Vertical angle: 28º

Linear pair: 152º

400

What is the distance between points (-5,7) and (2,-3)

Sqrt(149) or 12.2

500

Write an equation in slope-intercept form of a line that passes through (5,-12) and is perpendicular to y=5x +9

y=-1/5x - 11