Write the point-slope form of a line.

y = y1 + b (x - x1)

Find a line that is perpendicular to 4x - 5y = 20that goes through the point (6, 15).

y = -1.25x + 22.5

Find explicit formulas for the sequencesu0 = 26un = un-1 + 16

t1 = -15tn = tn-1 - 3

un = 26 + 16n

tn = -12 - 3n

What is true about the equations for two lines that are parallel?

Same Slope

Where do forest fires travel faster? uphilldownhilldoesn't matter

uphill

Write an equation for a vertical line through the point (6, -4).

x = 6

Find an equation for a line one-third of the wayfrom y = -1.8x + 74.1 and y = -1.8x + 70.5.

y = -1.8x + 72.9

Find the for a line that has slope -7 and an x-intercept of 6.

y = -7x + 42

Explain the concept of interpolation.

Use a line of fit to estimate a value when the value is within the given data.

What sport is the most common cause of eye injuries in the U.S.?

baseball

s = 7 - 3n7n + 2s = 40

(26, -71)

Year 1950 1960 1970 1980 1990 2000

Price 0.27 0.31 0.36 1.19 1.15 1.56

Find the median median line for the dataand predict the price in 2010.

y = 0.027x - 51.781.74

Year 1950 1960 1970 1980 1990 2000

Price 0.27 0.31 0.36 1.19 1.15 1.56

Find the root mean square error for the median-median line.

.222

When you try to solve a system with no solution, what will happen?

You will get a statement that is untrue

Unlike most other fish, sharks have no ______?

Bones

Name 4 ways to solve a system.

TableGraphingSubstitution Elimination

Solve the system3x + 4y = 122x - 6y = 5

(46/13, 9/26)(3.539, 0.346)

Alyse earns $15.40 per hour, and she earns time and a half for working pask 8:00 P.M. Last week she worked 35 hours and earned $600.60. How many hours did she work past 8:00 P.M.?

27 regular8 after 8:00 P.M.

2x + y - z = 23x + 2y + 3z = 175x - y + 2z = 15

(2, 1, 3)

What president was once offered a contract with the Cincinnati Reds

William H. Taft