Linear Equations
Write the following equation in Slope-Intercept form:
y - 6 = 4(x - 2)
y = 4x - 2
2,6,18,56,?
A:124 B:200
C:135 D:168
Which number is after 56 and follows the pattern?
D:168
H(r)=-3/2r-5
P(R) (0,-5),(1,-6.5),(2,-8),(3,-9.5)
Which function decreases faster?
A: H
B: P
C: The functions decrease at the same rate
A
x≤,11. If you were to plot this line would the dot on the line be shaded?
Yes
What is the difference between slope-intercept form and standard form?
Slope intercept form is y=mx+b
Standard form is ax+by=6
Solve this equation for x:
-x + 5 = 8x - 4
x = 1
94,85,76,67,58,?,?
A: 47,42 B:40,30
C: 49,40 D:49,42
C: 49,40
P(r)=-1/2r+5
x(r)= (0,4.5),(1,3),(2,2),(3,1.333333)
Which function has a higher y-intercept value?
A: P
B: x
C: The functions have the same y-intercept
A: P
x>11. If you were to plot this line would the dot in the line be shaded?
No
What method would best be used for solving this?
3x-4y=10
9y+3x=7
Elimination
Change this equation into Standard Form:
y = -5x + 3
5x + y = 3
5, 12, 19, 26, 33, 40, __, __, __, __
n1 n2 n3 n4 n5 n6 n7 n8 n9 n10
What are n7, n8, n9, and n10?
47, 54, 61, 68
P(r)+3r+3.5
n(r) (0,1),(1,2),(2,4),(3,8)
Which function has a higher slope?
A: P
B: n
C: Both functions have the smae slope
A: P
y>4x-3
y≥-2x+3
What is a possible solution?
A:(1,1) B:(2,3)
C:(2,3) D:(2,2)
A:(1,1)
What equation goes through the points (1,-1) and (3,5). You must put the equation in slope-intercept form.
y=3x-4
If a line goes through the points (6, 3) and (9, 6), what is that line's Slope-Intercept equation?
y = x - 3
5, 12, 19, 26, 33, 40, __, __, __, __
n1 n2 n3 n4 n5 n6 n7 n8 n9 n10
What is the expression for this pattern?
7(n-1) + 5
P(r)=2r+7
S(r)= (0,7),(1,14),(2,28),(3,56)
Which function has a higher y-intercept value?
A: P
B: S
C: The functions have the same y-intercept
C
y<3
y≤-x+1
What is a possible solution?
A:(-2,3) B:(5,6)
C:(-1,3) D:(1,3)
A:(-2,3)
What is the solution to these systems of equations
y=12x+108
3y=36x+324
No solution
Agi is 6 times as old as Gem is. 12 years ago, Agi was 8 times as old as Gem. How old are Agi and Gem now respectively?
Agi's age = 252 years (really old!!)
Gem's age = 42 years
1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048
n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12
What is the expression for this pattern?
1 x 2^n
p(r)= 1/2r+5
n(r)= (0,1), (1,0.5), (2,0.25),(3,0.125)
A: P
B: N
C: The functions have the same slope
C
Solve this
5x+1≤ 3x-17
x≤-9
What equation goes through the points (0,3), (1,5), (2,7), (3,9). You must put the equation in slope-intercept form.
y=2x+3