Read the Graph Linear Equation

Which of the following represents the constant of proportionality in the table below?

• k = 85

• k = 95

• k = 190

• k = 125

The table below shows the relationship between the number of miles traveled, x, and the number of gallons of gas used, y. Which of the following equations best represents the relationship?

• 35 = 1x

• y = 1/35x

• y = 35x

• y = 3.5x

The total number of eggs , y, contained in x cartons can be represented by the equation y = 12x. Which of the following graphs best represents this situation?

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Which of the following equations best represents the relationship between x and y?

• y = -2x

• y = 2x

• y = ½x

• y = -½x

Which is the graph of y= -x + 2?

• A

• B

• C

• D

Graph. y = 2/3x - 3

• a

• b

• c

• d

The graph shows the amount of money that Janice saves each week from her summer job. Which equation best represents the graph?

• y = 100x + 200

• y = 200x + 100

• y = 200x + 150

• y = 150x + 200

The table represents some points on a linear function. Which situation can be modeled by this function?

• The cost of buying x number of concert tickets for $76 each.

• The number of pages y that can be read in 76 minutes.

• The number of gallons of fuel x that can be used to travel 228 miles.

• The amount of money spent from a savings account with y dollars.

Which graph best represents the equation y = 1.5x - 2?

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Write the linear regression equation for the data set foot length (x) and height (y).

• y = 117.99 + 1.878x

• height^ = 28.39(foot length) + 1.155

• y = 1.878 + 117.99x

• height^ = 117.99 + 1.878(foot length)