finding rate of change and y intercept in tables and graphs

finding rate of change and y intercept in tables and graphs

We can make a y=mx+b equation

Our goal is to find slope and y intercept in tables and graphs

Multiple Choice

How can we find the rate of change of this table?

• change in y over change in x

• change in x over change in y

• 2/9

• 9/2

Multiple Choice

What is the rate of change in the table?

• 3/2
• 2/3
• -3/2
• -2/3

Multiple Choice

Where would you find the y intercept on this table? Hint: where would x=zero be.

• between 9 and 3 of x

• between -6 and -10 of y

• between 3 and -3 of x

• x = 0 is not on this table so we can not tell

Multiple Choice

What is the y intercept of this table? Hint: it s the y value when x =0

• between 2 and -2 of the y

• between -6 and -10 of y

• it should be 0

• it should be -4

Multiple Choice

What is the y=mx+b (slope intercept form) equation of the table. Hint: find your slope (m) and the y-intercept (b) and insert those values in the y=mx+b formula.

• $y=\frac{2}{3}x+4$

• $y=-\frac{3}{2}x-4$

• $y=\frac{2}{3}x-4$

• $y=-\frac{2}{3}x+4$
  

Multiple Choice

What is the rate of change in the table?

• 3
• 2
• 2/3
• 3/2

Multiple Choice

What is the rate of change in the graph?

• -6
• -1/6
• 2
• -4

Multiple Choice

What is the equation of this graph?

• $y=-3x+6$

• $y=3x-6$
  

• $y=-6x+3$
  

• $y=6x+3$
  

Multiple Choice

Which graph shows a line with a zero of 2? (hint: remember the zero of a function is the x-intercept)

Multiple Choice

Which table shows the same rate of change as the equation

 $y=2-\frac{4}{7}x?$  

Multiple Choice

What is the slope of the line identified by

 $y+3=2\left(x-3\right)?$  

• -3

• 2

• 3

•  $\frac{2}{3}$  

Multiple Choice

What is the slope of the line that pass through the points (23, 9) and (-32, 14)?

• $-\frac{1}{11}$

• $\frac{5}{9}$

• -11

• $\frac{9}{5}$

Fill in the Blanks

How do you feel about slope and y intercept now?

go to google classroom for assignment 5-9