Find the next three terms in the sequence?
-6,5,16,17
A 38,49,60***
B 37,47,57
C 36,45,54
D 36,46,57
3 What are the first four terms of the sequence represented by the expression n(n-1)-5?
A -7,-5,-3,1
B -5,-10,-15,-20
C 0,2,6,12
D -5,-3,1,7***
6.Given the function rule f(x)=x^2- 4x + 3, what is the output of f(-3)?
A.24
B.21***
C.0
D.-3
8. The data in the table illustrates a linear function. X 0, 2, 4,6
Y -5,-2,1,4
A.-2/3
B.3/2***
C.2/3
D.-3/2
12.Which function rule represents the data in the table below?
Input (x) 1, 2, 3, 4, 5
Output (y)9,14,19,24,29
A.y=4+5x
B.y=3+6x***
C.y=5+4x
D.y=6+3x
15.Which function rule represents the data in the table?
X -3,-2,-1, 0, 1
Y 1, -2,-5,-8,-11
A.y=-3x-8
B.y=-1/3x-8
C.y=1/3x+8***
D.y=3x+8
16. Which quadratic rule represents the data in the table?
X -1,0,1,2, 3
Y 6,5,6,9,14
A.y=2x^2+5
B.y=x^2+5
C.y=x^2-5
D.y=x^2+5***
Just needed help in these few please. Please check them.
A
D
B
B
B
C
D
17 answers
#3 ok
#6 nope - you forgot the +3
#8 ok if you wanted the slope
#12 nope. Note that y grows by 5, not 6. You can't tell by looking only at the first entry.
#15 nope. Note that y drops by 3. A good place to start is where x=0
#16 ok
x
y
2
3400
3
4500
6
5600
7
6700
8
7900
9
9900
10
12300
Find the equation of the line or the general regression equation.
x y
2 3400
3 4500
6 5600
7 6700
8 7900
9 9900
10 12300
Find the equation of the line or the general regression equation.
Mia charges $2.25 per hour when she babysits, plus $5.00 for transportation expenses. Which function rule represents the amount y Mia charges to babysit for x hours?
A. y = 2.25x + 5.00
B. x = 5.00y + 2.25
C. y = 5.00x + 2.25
D. y = 7.25x
A. y = 1.15x + 0.95
B. y = (0.95 + 1.15)x
C. y = 0.95x + 1.15
D. y = 0.95(x – 1) + 1.15
x
–3
–2
–1
0
1
y
–17
–14
–11
–8
–5
A. y = –3x – 8
B. y = one-thirdx – 8
C. y = 3x – 8
D. y = one-thirdx + 8
x
–1
0
1
2
3
y
–4
–5
–4
–1
4
A. y = –2x² + 5
B. y = –x² + 5
C. y = x² – 5
D. y = x² + 5
The correct answer is:
B. y = -x² + 5