Quiz about Algebra Somidvar Quadratics

Question 1

The graph of $$f\left(x\right)=6x^2-11x+3$$ is shown on the grid.

What is the y-intercept of $$f$$ ?

Accepted Answer

$$3$$

Answer

$$2$$ and $$9$$

Answer

$$\frac{11}{12}$$

Answer

$$\frac{1}{3}$$ and $$\frac{3}{2}$$

Question 2

What is the domain of $$h$$ ?

Accepted Answer

All real numbers

Answer

All real numbers greater than or equal to $$-7$$

Answer

All real numbers greater than or equal to $$-8$$

Answer

All real numbers greater than or equal to $$0$$

Question 3

The graph of $$f\left(x\right)=x^2$$ is shown on the grid.
Which statement about the relationship between the graph of $$f$$ and the graph of $$g\left(x\right)=7x^2$$ is true?

Accepted Answer

The graph of $$g$$ is narrower than the graph of $$f$$ .

Answer

The graph of $$g$$ is wider than the graph of $$f$$ .

Answer

The graph of $$g\ $$ is 7 units below the graph of $$f$$ .

Answer

The graph of $$g$$ is 7 units above the graph of $$f$$ .

Question 4

The graph of $$f\left(x\right)=6x^2-11x+3$$ is shown on the grid.

What are the zeros of $$f$$ ?

Accepted Answer

$$\frac{1}{3}$$ and $$\frac{3}{2}$$

Answer

$$3$$

Answer

$$2$$ and $$9$$

Answer

$$\frac{11}{12}$$

Question 5

Accepted Answer

$$20x^2-4x-16$$

Answer

$$20x^2+36x-16$$

Answer

$$16x^2-16$$

Answer

$$9x^2-16$$

Question 6

Factor:
x² - 10x + 24

Accepted Answer

(x - 6)(x - 4)

Answer

(x + 6)(x + 4)

Answer

(x - 12)(x + 2)

Answer

(x - 8)(x - 3)

Question 7

Factor x²- 36

Accepted Answer

(x + 6)(x - 6)

Answer

(x + 18)(x - 18)

Answer

(x -6)(x -6)

Answer

(x - 18)(x - 18)

Question 8

Solve using Zero-Product Property.
(2x - 2)(5x + 5) = 0

Accepted Answer

x = -1 or x = 1

Answer

x = -1

Answer

x = 1

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