math

Question 0

addition property of equality

Answer 0

adding the same number to each side of an equation gives an equivalent equation

Question 1

subtraction property of equality

Answer 1

subtracting the same number from each side of an equation leads to an equivalent equation

Question 2

how do you remove a fraction from one side of an equation?

Answer 2

multiply that fraction by its reciprocal and then multiply the other side of the equation by that same reciprocal

Question 3

how many possible answers can there be to an algebra problem involving absolute values?

Answer 3

two, one involving negative x from zero

another involving positive x from zero

Question 4

define ratio

Answer 4

comparing two quantities using division

Question 5

define percent

Answer 5

percent is a fraction with a denominator of one hundred

Question 6

what are three ways of writing ratios?

Answer 6

a to b, a:b, a/b

always read as “the ratio of a to b”

Question 7

what is a proportion?

Answer 7

an equation indicating that two ratios are equivalent.
proportions are read as “a is to b as c is to d”
can be solved by isolating the variable

Question 8

what is a trick for solving percent problems?

Answer 8

is/of = %/100

Question 9

describe the process for solving linear equations

Answer 9

1. solve for y
2. make a table for the values of x and y
3. substitute numbers in for x and solve for y
   a. try to pick values that give both positive and negative values for y, thus giving a better impression of what the line looks like

Question 10

what is the standard form for linear equations?

Answer 10

Ax+By=C, so long as both A and B are not zero

Question 11

what is the other method for graphing lines?

Answer 11

finding the x and y intercepts

intercepts are where the lines meet the axis