Introduction to Quadratic Functions Answers

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) + 7

Which graph shows a negative rate of change for the interval 0 to 2 on the x-axis?

Which is f(5) for the function –2x2 + 2x – 3?

Consider the quadratic function f(x)=8x2−7x+6. What is the constant of the function?

Which graph represents a quadratic function with a vertex at (0, 0)?

Which represents a quadratic function?

What is f(−3) for the function f(a)=−2a2−5a+4?

Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of –3?

On a coordinate plane, a parabola opens up. It goes through (negative 7.5, 4), has a vertex of (negative 3, negative 9), and goes through (1.5 4). Solid circles appear on the parabola at (negative 7, 1.75), (negative 6, negative 3), (negative 3, negative 9), (0, negative 3), (1, 1.75).

A 2-column table with 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f of x with entries 21, 10, 5, 6, 13.

Which represents a quadratic function?

On a coordinate plane, a parabola opens down. It goes through (negative 1.9, negative 4), has a vertex of (0.5, 3.2), and goes through (3, negative 4).

Which function increases at the fastest rate between x = 0 and x = 8?

When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown?2 + 7c – 4c2 – 3c + 4