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2. What is the Y intercept of the quadratic function f(x) =6x^2-3x+1 (
1 point)

A -3
B. 1/4
C. 1
D. 6

3. What is the axis of the symmetry of the quadratic function f(x) =4(x+9)^2-5 (1 point)

A. X=-9
B. X=9
C. X=-5
D. X=5

4. Rewrite f(x)=3x^2 +6x-72 In factored form. (1 point)

A. f(x)=3(x-6)(x+4)
B. f(x)=3(x+6)(x-4)
C. f(x)=3(x-8)(x+3)
D. f(x)=3(x+8)(x-3)

5. Rewrite f(x)=-2x^2+16x-11 In vertex form. (1 point)

A. f(x)=-2(x+4)^2+5
B. f(x)=-2(x-4)^2+5
C. f(x)=-2(x+4)^2+21
D. f(x)=-2(x-4)^2+21

Question

contestada

Respuesta :

makenziebaird makenziebaird · Answer 1 · 2019-03-26T19:45:11+01:00

Answer:

2.C

3.B

4.B

5.D

Step-by-step explanation:

2. the y intercept in this equation is the c value, which is 1 so the answer is c

3. The vertex of this function would be (9, -5) and the axis of symmetry is the first value so its 9, B

4. Not that hard, tip is to just distribute in all the answers and see which one gives you the original equation, it is B

5. You solve the original equation by completing the square, if you don't know how to do that look it up. Answer is D