Foundations -- DCA #2 Review

The table of values represents the linear function y = 2x + 4. When the function is graphed, what are the x- and y-intercepts?

• x-intercept: 1; y-intercept: 6

• x-intercept: -2; y-intercept: 4

• x-intercept: 0; y-intercept: 4

• x-intercept: -2; y-intercept: 0

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

For an algebra class, all students took a unit 5 test. The score and the amount of hours they studied are contained on the graph. What type of correlation does the scatterplot show?

• weak positive

• weak negative

• strong positive

• strong negative

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Use the graph of the linear inequality below to answer the question.

• (−3, 0)

• (−4, −3)

• (0, 1)

• (4, 5)

• (0, 5)

Tags

CCSS.HSA.CED.A.3

CCSS.HSA.REI.D.12

Bryce wants to solve the system of equations below using substitution. What would be her best first step? Equation 1: x - 4y = 10

Equation 2: 2x - 5y = 16

• Subtract 4y from both sides of Equation 1.

• Add 4y to both sides of Equation 1.

• Multiply Equation 1 by -2 and then add the equations.

• Add 5y to both sides of Equation 2.

Tags

CCSS.HSA.REI.C.6

Graph the line of the equation y - 3 = 2(x + 1).

Identify the equation that is written in slope-intercept form that matches the above equation.

• y = 2x + 5

• y = 2x - 1

• y = 2x + 3

• y = 2x + 1

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.C.7

What is the solution to the given system of equations?

2x + 7y = -25

-8x + 7y = -5

• (2, 3)

• (-2, -3)

• (-2, 3)

• (2, -3)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Joe sold a total of 10 baked goods at a bake sale. He sold cookies for $1.25 each and brownies for $2.50 each. Joe earned $20 at the bake sale. How many cookies did Joe sell?

• 5

• 6

• 8

• 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

CCSS.HSA.REI.C.6

The scatter plot shows babies' ages and their weights. The y-intercept of the linear model shows that:

• babies weigh about 2 lbs at birth

• babies weigh about 8 lbs at birth

• each baby gains about 2 lbs per month

• each baby gains about 8 lbs per month

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.C.7

Use a calculator to determine the line of best fit from the data given in the table.

• y = 0.14x + 1.14

• y = 0.14x - 1.14

• y = 6.37x + 7.74

• y = -6.37x + 7.74

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

The graph of a system of equations is shown. When does f(x) = h(x)?

• (1, 2)

• (-1, 2)

• (1, -2)

• (-1, -2)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11