slope
Find the slope between (2,5) and (6,13).
2
Find the slope and y-intercept of y=3x-8.
m=2, b=-8
Are y=2x+3 and y=2x-5 parallel, perpendicular, or neither?
parallel
3x-7=11
x=6
Find the interest on $500 for 2 years at 4%.
I = 500(.04)(2) = 40
Find the slope of 4x-2y=10.
2
Write the equation of a line with m=5 and y=2.
y=5x+2
Are y=-3x+1 and y=1/3x-7 parallel, perpendicular, or neither?
Perpendicular
5(x-2)=3x+4
x=7
Find the interest on $800 for 3 years at 5%.
I = 800(.05)(3) = 120
Find the slope of y=-7.
0
Write the equation through (1,4) when m=3.
y=3x+1
Write an equation parallel to y=4x-2 through (0,5).
y=4x+5
4x + 3 ≤ 15
x ≤ 3
You invest $1,000 for 3 years.
How much interest at 4%?
How much at 6%?
4% → $120
6% → $180
Find the slope between (-3,4) and (1,-8).
-3
Find the zero of f(x)=4x-12
x=3
Write an equation perpendicular to y=1/2x+3 through (2,1).
y=-2x+5
3 < 2x + 1 ≤ 9
1 < x ≤ 4
$2,000 invested for 5 years.
Compare interest at 3% and 7%.
3% → $300
7% → $700
Find the slope of x=6.
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Find the equation through (-2,5) and (4,11).
y=x+7
Are 3x+2y=6 and 6x+4y=10 parallel, perpendicular, or neither?
parallel
A gym charges $20 plus $15 per month.
Write the equation and find the cost after 6 months.
C(x) = 15x + 20
C(6) = 110
A phone plan charges $30 per month plus $0.10 per text.
Your bill was $55.
How many texts were sent?
Equation: 55 = 30 + 0.10x
25 = 0.10x
x = 250 texts