Solving by Quadratics by Graphing

Which of the following represents the solutions to the equation:  
3x² + 4x – 20 = 0?

• 0 and -20

• 3.33 and -2

• -3.33 and 2

• -0.67 and -21.33

Tags

CCSS.HSA-REI.B.4B

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

What are the solutions to this function?

• x={-2,-1}

• x={-3,-1}

• x={-1,3}

• x={-1,-2}

What is another way to say "where a function crosses the x-axis"?

• x-intercept

• zero

• root

• all of these.

Tags

CCSS.HSF-IF.C.7C

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1

Tags

CCSS.HSF-IF.C.7A

Calculate the zeros of the quadratic.

• x = 2 and -3

• x = 0 and 9/4

• x = 0 and 4/9

• x = 1/2 and 1/3

Tags

CCSS.HSA-REI.B.4B

What are the x-intercepts of y = x² - 3x - 10?

• (-3, 0) and (-10, 0)

• (-5, 0) and (2, 0)

• (5, 0) and (-2, 0)

• (5, 2)

Tags

CCSS.HSF-IF.C.7A

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b