MATH UNIT TEST 2

Which represents a quadratic function? : f(x) = -7x2 - x + 2

liana started to evaluate the function f(x) = 2x2 - 3x + 7 for the input value 2.f(x) = 2(2)2 - 3(2) + 7= 2(4) - 3(2) + 7What is the value of the function when x = 2? : 9

The graph of which function has an axis of symmetry at x = 3? : f(x) = x2 - 6x - 1 graph

The graph of which function has a y-intercept of 3? : under -2, under 1 near the

For all functions of the form f(x) = ax2 + bx + c, which is true when b = 0? : The y-intercrept will always be the vertex

What is the y-intercept of the graph of the function f(x) = x2 + 3x + 5? : (0, 5)

Which is the graph of f(x) = (x - 1)(x + 4)? : (beween 2 and 1, 6)

The graph of the function f(x) = (x + 2)(x + 6) is shown below.Which statement about the function is true? : The function is negative for all real values of x where-6 < x < -2.

The graph of f(x) = x2 is translated to form g(x) = (x - 5)2 + 1.Which graph represents g(x)? : (5, 1)

Which graph shows the axis of symmetry for the function f(x) = (x - 2)2 + 1? : vertex 2

What is f(x) = 2x2 + 28x - 5 written in vertex form? : f(x) = 2(x + 7)2 - 103

What is the vertex of g(x) = 3x2 − 12x + 7? : (2, −5)