Pre-Calculus Wk 1.1

Anika is designing a super-fast roller coaster and needs your help! The track follows a straight line with a slope of -4 and crosses the y-axis at 0. What is the slope-intercept form of the equation for Anika's roller coaster track?

• y = -4x + 1

• y = -4x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Rohan and Isla are working together on their math homework. Can you help them write the slope-intercept form of the equation of this line?
3) 7x + 5y = -30

• y = 7/5x + 6

• y = -7/5x - 6

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Charlotte and Benjamin are drawing lines on the board! Can you help them write the slope-intercept form of the equation for this line? 4) 3x - 4y = -12

• y = 3/4x + 3

• y = -3/4x - 3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Avery is designing a ramp for her skateboard and needs your help! She wants the ramp to pass through the point (5, -5) and have a slope of -4/3. Can you write the slope-intercept form of the equation for Avery's ramp?

• y + 5 = -4/3(x - 5) or y = -4/3x + 20/3

• y - 5 = -4/3(x + 5) or y = -4/3x - 20/3

Rohan and Maya are on a treasure hunt! Rohan starts at (-4, -3) and Maya starts at (2, 5). Can you help them find the secret path by writing the slope-intercept form of the equation of the line that passes through both of their locations?

• y = 2x - 1

• y = 4/3x + 1/3

Abigail is on a math adventure! She needs your help to find the slope-intercept form of the equation of a line that passes through the point (3, -1) and is perpendicular to x = 0. Can you help her figure it out?

• y = 3x - 10

• x = 3 (since perpendicular to x = 0, which is a vertical line, so the line is horizontal)

Mia and Rohan are solving a puzzle together! Help them solve the inequality and graph its solution. Write the solution in set notation.
10) 108 < -4(-4m + 5)

• m > 1

• m < 1

Tags

CCSS.7.EE.B.4B

Jackson and Priya are solving a puzzle together! They need to find all the possible values of x that satisfy this compound inequality:
-6 ≤ x - 8 ≤ 0
Can you help them solve it and choose the correct solution?

• 2 ≤ x ≤ 8

• 0 ≤ x ≤ 6

Elijah and Priya are solving a puzzle! Help them out: Solve each compound inequality and graph its solution. n + 9 < 5 or -9n ≤ -18

• n < -4 or n ≥ 2

• n > -4 or n ≤ 2

James and Mia are solving puzzles together! Match each equation to the correct value(s) of n that make it true.

• |9 + 6n| = 45

• n = -6 or n = 9

• |9 - 6n| = 45

• n = 6 or n = -9

• |9 - 6n| = 9

• n = 0 or n = 1.5

• |9 - n| = 61.5

• n = 7.5 or n = -7.5

Tags

CCSS.HSA-REI.B.4B