Math- Algebra 1 Module 2 CUA

Front

What is the equation to find the coldest temperature recorded in Siberia if the coldest temperature in Alaska is -80°F and it is 10°F warmer?

Back

T + 10 = -80; T = -90°F

Front

How do you solve for d in the equation t = 5d, where t is time in seconds and d is distance in miles?

Back

d = t/5

Front

If a car leaves Seattle traveling at 50 mph and another car leaves 2 hours later at 60 mph, how do you find when they are the same distance from Seattle?

Back

Set the distances equal: 50(t) = 60(t - 2) and solve for t.

Front

What does the equation 4(x + y) = 20 represent in words?

Back

Four times the sum of a number x and a number y is equal to 20.

Front

What is the definition of a variable in algebra?

Back

A symbol, often a letter, that represents one or more numbers.

Front

What is the purpose of solving equations?

Back

To find the value of the variable that makes the equation true.

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What does it mean for two equations to be equivalent?

Back

They have the same solution set.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the y-intercept of a linear equation?

Back

Set x = 0 and solve for y.