Algebra 1: Introduction to Quadratic Functions (100%)

Which is f(5) for the function -2x2 + 2x - 3? -107 -63 -43 -37

-43

When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown? 2 + 7c - 4c2 - 3c + 4 -4c2 + 4c + 6 -7c2 + 10c + 6 -4c2 + 4c + 8 -7c2 + 7c + 6

-4c2 + 4c + 6

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

6

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 What is the value of the function when x = 2? 9 10 16 17

9

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

Graph 3

Which equation represents a quadratic function with a leading coefficient of 2 and a constant term of -3? f(x) = 2x3 - 3 f(x) = -3x2 - 3x + 2 f(x) = -3x3 + 2 f(x) = 2x2 + 3x - 3

f(x) = 2x2 + 3x - 3

Martha wrote an example of a quadratic function for a homework assignment. The function she wrote is shown. f(x) = 5x3 + 2x2 + 7x - 3 What possible changes can Martha make to correct her homework assignment? Select two options. The first term, 5x3, can be eliminated. The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2. The exponent on the second term, 2x2, can be changed to a 3 and then combined with the first term, 5x3. The constant, -3, can be changed to a variable. The 7x can be eliminated.

The first term, 5x3, can be eliminated. The exponent on the first term, 5x3, can be changed to a 2 and then combined with the second term, 2x2.

Which is f(-3) for the quadratic function graphed? -9 -3 0 9

-9

What is f(−3) for the function f(a)=−2a2−5a+4? −29 −23 1 37

1

Consider the graph of the quadratic function. Which interval on the x-axis has a negative rate of change? -2 to -1 -1.5 to 0 0 to 1 1 to 2.5

1 to 2.5