Unit Test — Unit test Answers
25 verified answers2 views
21
Free Preview
Which equation is the inverse of y = 9x2 – 4?
A
y = StartFraction plus-or-minus StartRoot x + 4 EndRoot Over 9 EndFraction
B
y = plus-or-minus StartRoot StartFraction x Over 9 EndFraction + 4 EndRoot
C
y = StartFraction plus-or-minus StartRoot x + 4 EndRoot Over 3 EndFraction
D
y = StartFraction plus-or-minus StartRoot x EndRoot Over 3 EndFraction + two-thirds
23
On a coordinate plane, a parabola opens up. It starts in quadrant 1, crosses the x axis where the vertex is in quadrant 4, and crosses the x-axis back into quadrant 1.
A
f(x) = (x – 8)2 + 6B
f(x) = (x + 8)2 + 6C
f(x) = (x + 8)2 – 6D
f(x) = (x – 8)2 – 624
What is the value of ?
A
–3 + 6iB
3 + 6iC
5 + 5iD
5 – 5i25
Using the quadratic formula to solve 4x2 – 3x + 9 = 2x + 1, what are the values of x?
A
StartRoot 1 plus-or-minus StartRoot 159 EndRoot i Over 8 EndFraction
B
StartRoot 5 plus-or-minus StartRoot 153 EndRoot i Over 8 EndFraction
C
StartRoot 5 plus-or-minus StartRoot 103 EndRoot i Over 8 EndFraction
D
StartRoot 1 plus-or-minus StartRoot 153 EndRoot Over 8 EndFraction
Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this