ttoha1a chapter 7 and 9 zeros of a quadratic function

• Wiskunde
• Middelbare school
• havo, vwo
• Leerjaar 1

ttoha1a chapter 7 and 9 

Zeros

• f(x) = 2x + 4
• Find the argument (value of x) for which f(x) = 0

• x = -2

2⋅−2+4=−4+4=0

Zeros

Find the arguments for which f(x) = 0

x = 2

f(x)=2x​2​​−4x

f(x)=2⋅2​2​​−4⋅2=2⋅4−4⋅2=8−8=0

f(x) = 3x - 6
f(x) = 0 for which x?

1. x = 0
2. x = 1
3. x = 2
4. x = -2

f(x) = 8x + 4
f(x) = 0 for which x?

1. x = 0
2. x = 2
3. x = -2
4. x = -0.5

f(x) = 0 for which x?

f(x)=x​2​​−9

1. x = 0
2. x = 3
3. x = 3 and x = -3
4. x = 4.5

f(x) = 0 for which x?

f(x)=2x​2​​−8

1. x = 0
2. x = 2
3. x = 4
4. x = 2 and x = -2

To do:

Bettermarks 7.3 and 7.4

Finished? Start with diagnostic test chapter 7 in bettermarks