Supply and Demand Curve

Evaluate the expression for a = -2, b = 3, C = 10. (/a+b)*c

-110

Solve the equation: 108 = -9x x=

-12

Select the linear equations in two variables.

9=3+4 q = 24 - 2p

Which of the following is true about the slope of a line?

It can be defined as the change in y ("rise") over the change in x ("run").

The ____ of a line describes the slant (or steepness) of its graph, which remains constant everywhere on the graph.

Slope

Define the y-intercept of a line.

The y-intercept is where the line crosses (or intersects) the y-axis.

True or False: Graphs can be more useful than tables to help understand quantitative information.

True. Trends can often be seen in a graph that are not always visible in a table.

If v= 10, which are equal to 20?

V+V V + 10 2v

Which of the following equations represent the same line?

(y - 6) = 2(x - 5) 3y - 6x = -12 y = 2x - 4

Evaluate the expression given a = 5, b = -5, C = 3 ab - ba + c

0

The y-intercept is named by an ordered pair that has an x value of

0

Evaluate the following expression and select the correct answer: 3x + y, given x = 7 and y = 1

22

In the expression 6c + 5, which term is the constant term?

5

Choose the items that disqualify an algebraic equation from being linear.

An exponent of more than 1 on X. A term with xy as its variable part. An x' in a denominator.

Choose the items that disqualify an algebraic equation from being linear.

An x in a denominator. A term with xy as its variable part. An exponent of more than 1 on x

The slope-intercept form of a line's equation makes it easy to graph since the ____ and y- ___ are readable right from the equation.

Blank 1: slope Blank 2: intercept

True or false: The equation of a line with slope 6 and y-intercept (0, 57) is y = 57x + 6.

False; m and b are interchanged.

True or false: The slope intercept form of a line must be converted to standard form for graphing.

False; the slope and y-intercept are easily identified for graphing.

What is true about the slope of a line?

If it is an integer, this indicates a denominator of 1, or a run of 1. It can be undefined. It is the ratio of rise to run. It can be zero. It is a ratio.

Which are reasons why a graph might be more useful than a table to aid in the understanding of quantitative information?

In graphed form, trends among data values might be visible. In table form, the information can be difficult to picture and interpret. A graph might show unique features of large data sets, like overall increases or overall variability.

Which are true statements about the slope of a line?

The slope describes the slant of the line. The slope of a line is the same everywhere on its graph.

Which steps are helpful to determine the equation of the line passing through (4,-10) that is parallel to 3x + 8y = 24? (Notice the steps might not be in order here.)

Use the point-slope formula. Determine the slope of both lines to be 20/ Change 3x + 8y = 24 to slope-intercept form.

Which is the point-slope formula to find the equation of a line?

y — y = m(x-x1

Which is the point-slope formula to find the equation of a line?

y-y = m(x - x1)

Which line has slope 4 and y-intercept (0, 6)?

y= 4×+6

Which equations are in slope-intercept form?

y= etc