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Find the x- and y-intercepts for the quadratic equation y
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# Question : Find the x- and y-intercepts for the quadratic equation y : 2151605

21) y = -x2 + 4

A)

B)

C)

D)

22) y = 5x2 + 10x + 1

A)

B)

C)

D)

23) y = x2 + 2x - 5

A)

B)

C)

D)

24) y = -x2 + 2x - 8

A)

B)

C)

D)

25) y = 3x2 + 3x - 8

A)

B)

C)

D)

26) y = -3x2 - 2x - 4

A)

B)

C)

D)

Sketch the graph of the equation. Identify the vertex and the intercepts.

27) y = x2 - 1

A) Vertex: (0, 1);

x-intercepts: none;

y-intercept: (0, 1)

B) Vertex: (0, -1);

x-intercepts: (-1, 0) and (1, 0);

y-intercept: (0, -1)

C) Vertex: (0, -1);

x-intercepts: none;

y-intercept: (0, -1)

D) Vertex: (-1, 0);

x-intercept: (-1, 0);

y-intercept: (0, 1)

28) y = x2 + 4

A) Vertex: (0, 4);

x-intercepts: none;

y-intercept: (0, 4)

B) Vertex: (0,-4);

x-intercepts: (-2, 0) and (2, 0);

y-intercept: (0, -4)

C) Vertex: (0, 4);

x-intercepts: (-2, 0) and (2, 0);

y-intercept: (0, 4)

D) Vertex: (4, 0);

x-intercept: (4, 0);

y-intercept: (0, 16)

29) y = x2 - 2x

A) Vertex: (- 1, - 1);

x-intercepts: (0, 0) and (-2, 0);

y-intercept: none

B) Vertex: (1, - 1);

x-intercepts: (0, 0) and (2, 0);

y-intercept: (0, 0)

C) Vertex: (- 1, - 1);

x-intercepts: (0, 0) and (-2, 0);

y-intercept: (0, 0)

D) Vertex: (1, - 1);

x-intercepts: (0, 0) and (2, 0);

y-intercept: none

30) y = x2 + 2x - 3

A) Vertex: (1, - 4);

x-intercepts: (-1, 0) and (3, 0);

y-intercept: (0, 3)

B) Vertex: (- 1, - 4);

x-intercepts: (-3, 0) and (1, 0);

y-intercept: (0, -3)

C) Vertex: (1, - 4);

x-intercepts: (-1, 0) and (3, 0);

y-intercept: (0, -3)

D) Vertex: (- 1, - 4);

x-intercepts: (3, 0) and (1, 0);

y-intercept: (0, -3)

31) y = -x2 - 2x + 3

A) Vertex: (- 1, 4);

x-intercepts: (-1, 0) and (3, 0);

y-intercept: (0, 3)

B) Vertex: (- 1, - 4);

x-intercepts: (-3, 0) and (1, 0);

y-intercept: (0, -3)

C) Vertex: (1, 4);

x-intercepts: (-1, 0) and (3, 0);

y-intercept: (0, 3)

D) Vertex: (- 1, 4);

x-intercepts: (-3, 0) and (1, 0);

y-intercept: (0, 3)

32) y = x2 + 7x + 10

A) Vertex: (- (7/2), - (9/4));

x-intercepts: (-2, 0) and (-5, 0);

y-intercept: (0, 10)

B) Vertex: (- (7/2), - (9/4));

x-intercepts: (2, 0) and (5, 0);

y-intercept: (0, 10)

C) Vertex: ((7/2), - (9/4));

x-intercepts: (2, 0) and (5, 0);

y-intercept: (0, 10)

D) Vertex: ((7/2), - (9/4));

x-intercepts: (-2, 0) and (-5, 0);

y-intercept: (0, 10)

33) y = 3 - x2

A) Vertex: (0, 3);

x-intercepts: (-√(3), 0) and (√(3), 0);

y-intercept: (0, 3)

B) Vertex: (0, -3);

x-intercepts: none;

y-intercept: (0, -3)

C) Vertex: (0, -3);

x-intercepts: (-√(3), 0) and (√(3), 0);

y-intercept: (0, -3)

D) Vertex: (0, 3);

x-intercepts: none;

y-intercept: (0, 3)

34) y = x2 - 2x + 6

A) Vertex: (1, -5);

x-intercepts: none;

y-intercept: (0, -6)

B) Vertex: ((7/2), (25/4));

x-intercepts: (1, 0) and (6, 0);

y-intercept: (0, 6)

C) Vertex: (1, -1);

x-intercepts: (0, 0) and (2, 0);

y-intercept: (0, 0)

D) Vertex: (1, 5);

x-intercepts: none;

y-intercept: (0, 6)

35) y = - x2 - 4x - 4

A) Vertex: (2, 0);

x-intercept: (2, 0);

y-intercept: (0, -4)

B) Vertex: (2, 0);

x-intercept: (2, 0);

y-intercept: (0, 4)

C) Vertex: (-2, 0);

x-intercept: (-2, 0);

y-intercept: (0, 4)

D) Vertex: (-2, 0);

x-intercept: (-2, 0);

y-intercept: (0, -4)

36) y = 2x2 + 8x + 12

A) Vertex: (-2, 4)

x-intercepts: none

y-intercept: (0, 12)

B) Vertex (2, 4)

x-intercepts: none

y-intercept (0, 6)

C) Vertex (2, 4)

x-intercepts: none

y-intercept (0, 12)

D) Vertex (-2, 4)

x-intercepts: none

y-intercept: (0, 6)

37) y = 2x2 + 3x - 2

A) Vertex: (- (1/2), - (9/4));

x-intercepts: (-2, 0) and (1, 0);

y-intercept: (0, -2)

B) Vertex: (- (3/4), (25/8));

x-intercepts: (-2, 0) and ((1/2), 0);

y-intercept: (0, 2)

C) Vertex: (- (3/4), - (25/8));

x-intercepts: (-2, 0) and ((1/2), 0);

y-intercept: (0, -2)

D) Vertex: ((3/4), - (25/8));

x-intercepts: (2, 0) and (- (1/2), 0);

y-intercept: (0, -2)

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

Provide an appropriate response.

38) Describe the difference between the graphs of the equation y = x2 and y = -x2.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

39) Find the x- and y-intercepts for the quadratic equation y = x2 + 6x + 8.

A) x-intercepts -2 and -4; y-intercept -8

B) x-intercept 6; y-intercept 8

C) x-intercepts -2 and -4; y-intercept 8

D) x-intercepts 2 and 4; y-intercept 8

40) Graph the parabola: y = x2 + 6x + 8. Determine the equation of the axis of symmetry.

A) y = -3

B) y = 3

C) x = 3

D) x = -3

## Solution 5 (1 Ratings )

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Mathematics 4 Months Ago 24 Views