Chapter 1.1- 1.2 Quiz

Select the solutions points for y=2x² −23

• (2, 5)

• (2, 11)

• (-1, 5)

• (0,-23)

Find the slope between (6,3) and (4,-1)

• 2

• -2

• 1/2

• -1/2

Tags

CCSS.8.EE.B.5

Determine the slope and y-intercept 10=2y−6x

hint: isolate the y

• m= -3

  y-int= 5

• m= 4

  y-int= 8

• m= 6

  y-int= 10

• m= 3

  y-int= 5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write the equation of a line through (4,-1) and parallel to y=3x+5

• y=3x-8

• y=3x-13

• y=-1/3x-13

• y=-1.3x-8

What is the slope that is perpendicular to y = -3x + 1

• -3

• 3

• 1/3

• -1/3

Tags

CCSS.8.EE.B.6

After 4 hours on a road trip, you drive 300 miles. The max speed increases in Texas. After 6 hours you drive 460 miles.

Make sure you write down your slope on a piece of paper. You will use it the next few problems. 

Find the rate at which you are driving (slope).

(4, 300) and (6, 460)

• 80 MPH

• 1/8 MPH

• -80 MPH

• 75 MPH

Tags

CCSS.8.EE.B.5

After 4 hours on a road trip, you drive 300 miles. The max speed increases in Texas. After 6 hours you drive 460 miles.

Now that you have found the slope, find the y-intercept using the slope and a point

m=80  and (4, 300)

• 214

• -20

• 20

• 216

After 4 hours on a road trip, you drive 300 miles. The max speed increases in Texas. After 6 hours you drive 460 miles.

Use the equation that you come up with in the last two problems. 

If you drive for 10 hours, how far will you have driven? 

y=80x-20

• 800 miles

• 700 miles

• 7800 miles

• 780 miles

After 4 hours on a road trip, you drive 300 miles. The max speed increases in Texas. After 6 hours you drive 460 miles.

Use the equation that you come up with in the last three problems. 

If your destination is 1020 miles away (your y-value), how long will your trip take you if you have no stops?

y=80x-20

• 130 minutes

• 13 hours

• 10 hours

• 13 days