Acc. Math Quiz Review: y = mx+b

Caleb is selling brownies for a class fundraiser. The number of brownies sold is propotional to the cost of brownies. If Caleb sold 20 brownies for $16.00, what would the cost be if he sold 115 brownies?

• $143.75

• $92.00

• $0.80

• $92.75

What statement is true aobu the line in the graph shown?

• The slope is positive

• The y intercept is negative

• For every 4 units y decreases, x increases by 5

• For every 4 units x decreases, y increases by 5.

Tags

CCSS.8.EE.B.5

The graph of which of the followin equations would be the steepest slope?

Tags

CCSS.8.EE.B.5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

A company is gowing a type of wheat that gains height at a constant rate. They know tha its height, h, can be found using the equation h = 4.6w, where w is the number of weeks it has been growing and the height is in centimeters.

They experiment by adding nutrients to the field to see if it will change the above equaiton. The data on the table shows the results.

Which equation below calculates the new heeights, h, of the wheat that has been grown with the nutrient added?

• h = 5.8w

• w = 5.8h

• h = 0.17w

• w = 0.17h

Tags

CCSS.HSF-BF.A.1A

Graph the equation:

y = -3x + 2

Graph the equation:

y = x - 6