Graphs of Quadratic Functions Part 1 HW

What direction is the graph of the following function opening?

y=-3x²-7x+8

• Up

• Down

• Left

• Right

Standard form of a quadratic equation

• y=x²
• y=ax²+bx+c
• y=mx+b
• y=x

Tags

CCSS.HSA.CED.A.1

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 other names for the x-intercepts of a quadratic? Choose the best answer

• y-intercept

• Zeros/roots of the function ONLY

• Zeros/roots of the function; solutions of the quadratic equation

• Solutions of the quadratic equation ONLY

Which is a zero of the function of the given graph?

• 0

• -1

• 1.5

• -3

What are the zeros of the function

f(x)= -4(x - 3)(x+5)?

*Hint: Type the function into Desmos or solve the equation

• -12 and 20

• -5 and 3

• -4 and -5

• -3 and 5

What is the zero of the function graphed?

• 4 only

• 5 only

• No Solution

• 4 and 5

Tags

CCSS.HSF-IF.C.7A

How many solutions does the graph have?

• one

• two

• no solutions

• cannot be determined

How many roots does the function of this graph have?

• one

• two

• no solutions

• cannot be determined

Find the zero(s) of the function: y = 4x² +5x -6

• -8, 3

• -2, 3/4

• -3/4, 2

• 3/4, 2