Envision Algebra

y=2 

• is a vertical line
• is a horizontal line
• is a diagonal line

x=-2

• is a vertical line
• is a horizontal line
• is a diagonal line

What is the slope of the line that passes through the pair of points? (5, 7), (8, –3) 

• -10/3
• -3/10
• 10/3
• 3/10

Write
y = 1/4 x + 5 in standard form using integers.

• -x +4y = 20
• -x + 4y = 5
• 4x - y = 20
• -x -4y =20

Write an equation of a line with the given slope and y-intercept.
m = 3/2 
b = 3

• y=3x+3/2 
• y=3/2x–3 
• y=3/2x+3 
• y=2/3x+3 

Giselle pays $250 in advance on her account at the athletic club. Each time she uses the club, $15 is deducted from the account. Model the situation with a linear function.

• b=250-15x
• b=250+15x
• b=235+15x
• b=235-15x

The video store rents DVDs for $4.00 each and video games for $3.75 each. Write an equation in standard form for the number of DVDs d and video games g that a customer could rent with $20. 

• 4g+3.75d=20
  
• 4d=3.75g+20 
• 4d+3.75g=20
  
• 4+3.75=d 

The grocery store sells dates for $5.00 a pound and pomegranates for $3.75 a pound. Write an equation in standard form for the weights of dates d and pomegranates p that a customer could buy with $16.

• 5p+3.75d=16
  
• 5d+3.75p=16 
• 5+3.75=d
  
• 5d=3.75p+16 

• y = 290x−1.9

• y=−1.9x+271

• y = 10x+271

• y=−1.9x+290

• The slope is negative.
• The slope is positive.