CA Exam 3 review (CH 4 & 5)

A line passes through the points (-2, 16) and (-6, 20). What is the slope?

• 1

• -1

• 2

• -2

Tags

CCSS.8.EE.B.5

A line passes through the points (-2, 16) and (-6, 20). What is the y-intercept: b?

• 12

• 14

• 18

• 20

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

A line passes through the points (-2, 16) and (-6, 20). What is the equation of the line?

• y = -x + 14

• y = x + 18

• y = -x + 12

• y = x - 14

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

After 2017 the sales of new cell phones without cameras began declining. The number of people y (in thousands) who bought a cell phone without a camera can be estimated by the equation y = -23x + 69, where x is the number of years after 2017. Find the x-intercept.

• (3, 0)

• (2, 0)

• (4, 0)

• (5, 0)

Tags

CCSS.HSF.LE.B.5

What is the slope of the line 5x + y = 11?

• -5

• 5

• 1/5

• -1/5

Tags

CCSS.8.EE.B.5

What is the slope of the line 4y - 20x = -10?

• -5

• 5

• -1/5

• 1/5

Tags

CCSS.8.EE.B.5

Find the slope and y-intercept for a line parallel to y = -4x - 1 and passing through the point (3, -10). Then write the equation in slope intercept form.

• y=-4x+2

• y=4x-2

• y=-4x-2

• y=4x+2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

Find the slope and y-intercept for a line perpendicular to y = -2x + 4 and passing through the point (6, -2). Then write the equation in slope-intercept form.

• y = 1/2x - 5

• y = -1/2x +5

• y = 2x - 10

• y = -2x + 10

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

Which x-intercepts from y=(x-3)(x+4)^2(x-5)(x-9)^3 will the graph touch the x-axis and turn?

• x = -4

• x = 5

• x = 9

• x = 3

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.D.11

Let f(x) = (3x+6)/(2x-9). Find the domain.

• All real numbers except x = 9/2

• All real numbers except x = -2/9

• All real numbers except x = -9/2

• All real numbers except x = -2

Tags

CCSS.HSA.APR.D.7