Mathematics, 08.10.2019 08:30, denym58

1. which function has x-intercepts of -1 and 1 and contains the point (2,3)?
a) y=x^2+3
b) y=x^2+1
c) y=x^2-3
d) y=x^2-1

2. which function has x intercepts of 3 and 8 and contains the point (-1,-2)?
a) y= -(1/36)(x-3)(x-8)
b) y= -(1/14)(x-3)(x-8)
c) y= -(1/18)(x-3)(x-8)
d) y= -(1/7)(x-3)(x-8)

3. which function has vertex (-3,-1) and contains the point (-1,-9)?
a) y= -(x-3)^2-1
b) y= -(5/8)(x+3)^2-1
c) y= -(3/8)(x-3)^2-1
d) y= -(1/2)(x+3)^2-1

4. which function has vertex (2,0) and contains the point (3,4)?
a) y= 4x^2-4x+4
b) y= 4x^2-16x+16
c) y= x^2-4x+4
d) y= 2x^2-8x+8

5. what is the equation of quadratic function with vertex (0,0) and containing the points (1,-1), and (-1,-1)?
a) y= x^2
b) y= -x^2
c) y= x^2+1
d) y= x^2-1

Answers: 1

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1. which function has x-intercepts of -1 and 1 and contains the point (2,3)?
a) y=x^2+3
...