STAAR 2.0 Review Algebra

How many roots does this parabola have? 

• 3

• 2

• 0

• 1

-4x-2y=-12
4x+8y=-24

• (5,6)

• (6,-6)

• (6,-2)

• (4,-3)

4x+8y=20
-4x+2y=-30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

Parallel Lines never intersect because...

• they have the same slopes. 

• they have the same y-intercept.

• they have different slopes.

• they have different y-intercepts. 

Erin is 3 years younger than twice Alex's age. Their ages combined are 33 years. How old are Alex and Erin. If x=Erin's age and y=Alex's age, choose the system that matches the situation.

• x + y = 33
  y = 2x - 3

• x + y = 33
  x = 2y - 3

• x + y = 33
  x = 3 - 2y

• x + y = 3
  x = 33 - 2y

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2

• -1/2

• 2

• -2

Find the slope of the line.

• -2

• 2

• -1

• 1

Find the slope of the line.

• Undefined

• 0

• 1

• -1

What is the green dot on the parabola called?

• maximum

• minumum

• roots

• zeros

Does this parabola have a maximum or minimum?

• Maximum

• Minimum