Chapter 4 Writing Linear Functions (SUM 2020)

Write an equation of the line

• $y=-\frac{2}{3}x-2$

• $y=\frac{2}{3}x-2$

• $y=-\frac{2}{3}x\ +2$

• $y=\frac{2}{3}x+2$

An amusement park charges $9.00 for admission and $4.00 per ride. Write an equation that gives the cost (in dollars) as a function of number of rides.

Slope-Intercept Form (y=mx+b)

The equations of three lines are given. Identify which lines are parallel.

• Line A is Parallel to Line B

• Line A is Parallel to Line C

• Line B is Parallel to Line C

• No Lines are Parallel

Write an equation in slope-intercept form for the line parallel to

y = 5x – 2

that passes through the point (8, –2).

• $y=5x+32$

• $y=5x-42$

• $y=-\frac{1}{5}x-\frac{2}{5}$

• $y=-\frac{1}{5}x-2$

Determine which of the lines, if any, are perpendicular.

• $a\ \perp\ b$

• $\ b\ \perp\ c$

• $\ a\ \perp\ c$

• $a\perp b\ and\ c\perp b$

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Describe the correlation illustrated by the scatter plot.

• No Correlation

• Positive Correlation

• Negative Correlation

Joshua is making home-made cards to send to friends and family and to sell at the local craft fair. This scatter plot shows the total number of cards he had made after each hour he worked on the task.

Using this information, what is the best prediction of the number of cards Joshua can make in 11 hours?

• 54

• 39

• 19

• 29

A vertical line and a horizontal line are perpendicular.

• True

• False

Tags

CCSS.HSG.CO.A.1

 Write an equation of the line that passes through (2, 5) and is perpendicular to 

y = $\frac{1}{4}x-12$  

•  $y=-4x+3$  

•  $y=-4x+13$  

•  $y=-4x-13$  

•  $y=-4x-3$  

 $\left(5,6\right)\ m=4$  Write an equation in point-slope form of the line that passes through the given point and has the given slope. 

•  $y-6=4\left(x-5\right)$  

•  $y-5=6\left(x-4\right)$  

•  $x-5=4\left(y-6\right)$  

•  $\left(x-4\right)=5\left(y-6\right)$