STAAR EOC REVIEW DAY 7 Quadratic Functions

A quadratic function is graphed on the grid. Which function best represents the graph shown?

• y = -x^2 + 2x + 3

• y = x^2 + 3x + 2

• y = -x^2 + x + 3

• y = x^2 + 2x + 3

The quadratic function y = x^2 - 2x - 3 is graphed on the grid. How many solutions does the quadratic have? ​ (a)   What are the solutions of this quadratic function? (b)  

• two
• {-1, 3 }
• one
• zero
• {1, -4}
• {0, -3}

The quadratic function y = -x^2 - 2x + 3 is graphed on the grid. What are the coordinates of the vertex? ​ (a)   Is the vertex a maximum or a minimum? ​ (b)   What is the equation of the axis of symmetry?​ (c)  

​

• (-1, 4)
• Maximum
• x= -1
• (-3, 1)
• (0, 3)
• (4, 2)
• minimum
• y=4
• x=0

The quadratic function y = x^2 - 6x + 5 is graphed on the grid. What is the y-intercept?

• (5, 0)

• (0, 5)

• (1, 0)

• (1, 5)

The quadratic function y = x^2 - 6x + 5 is graphed on the grid. What the zeros of the equation?

• (5, 0)

• (0, 5)

• (1, 0)

• (1, 5)

Graph the quadratic function f(x) = -x^2 + 4 and use it to answer the following questions. What are the coordinates of the vertex? Is the vertex a maximum or a minimum?

• (0, 4), maximum

• (0, 4), minimum

• (4, 0), maximum

• (4, 0), minimum

Graph the quadratic function f(x) = -x^2 + 4 and use it to answer the following questions. What is the equation of the axis of symmetry? the y-intercept? and the zeros of the equation?

• x = 0

  (4, 0)

  no solution

• x = 0

  (0, 4)

  no solution

• x = 4

  (4, 0)

  4

• x = 4

  (0,4)

  4

What is the equation of the axis of symmetry?

• y-intercept is 9, vertex is a minimum, axis of symmetry is x = -3, zeros are -3

• y-intercept is 9, vertex is a maximum, axis of symmetry is x = 3, zeros are 3 and -3

• y-intercept is 0, vertex is a minimum, axis of symmetry is x = 0, zeros are 0

• y-intercept is 9, vertex is a minimum, axis of symmetry is x = -3, zeros are 3 and -3

• (-2.5, -6.25), minimum

• (2.5, 6.25), maximum

• (-2.5, -6.25), maximum

• (2.5, 6.25), minimum