3B TEST REVIEW

Graph y = 2x - 5

Organize these options into the right categories

Groups:

(a) Direct Variation

,

(b) NOT Direct Variation

• 3x - 7y = 0

• 5y = 3x

• 3x - 2y = 10

• y = -6x

• y = 1/2x + 3

• y = 4

• 
• 

Graph x = -3

Select the correct graph for each inequality.

• A
• B
• C
• _D

Given 2x - 5y = 10

Identify slope:​ (a)   x-intercept: ​ (b)   y-intercept: ​ (c)  

• 2/5
• 5
• -2
• 2
• -5
• 5/2

• 
• 
• 
• 

Given:

y - 8 = -3(x + 2)

What is the slope of the line?

• -8

• -3

• 2

Graph

y - 2 = 1/2(x + 4)

plot the point,

apply the slope

y is directly proportional to x.

if y = 65 when x = 12, find y when x = 27

• 103.5

• 128.75

• 146.25

• 160.75

explicit formula for...

5, 8, 11, 14...

• f(n) = 2 + 3n

• f(n) = 5 + 3n

• f(n) = 3 + 5n

• f(n) = 5 + 2n