Algebra Unit 4-5

 $y\ -\ 2\ =\ -3\left(x\ +\ 6\right)$  

What is the slope of the line above?

• -2

• -3

• 6

• unable to determine from the equation

 $6x\ -\ y\ =\ -3$  

What is the x-intercept of the line?

• (-2, 0)

• (2, 0)

•  $\left(\frac{1}{2},\ 0\right)$  

•  $\left(\frac{-1}{2},\ 0\right)$  

 $y\ -\ 3\ =\ -2\left(x\ +\ 6\right)$  

What is the point given by this equation?

•  $\left(-3,\ 6\right)$  

•  $\left(-6,\ 3\right)$  

•  $\left(6,\ -3\right)$  

•  $\left(3,\ -2\right)$  

The temperature outside and the number of clothing layers a person wears represents:

• positive correlation

• negative correlation

• no correlation

Which of the following equations is in proper SLOPE-INTERCEPT form?

• y = x + 3

• 2y = x + 3

• x - 2y = 3

• y - 5 = 2(x + 2)

Which of the following equations represents a HORIZONTAL line?

• y = x

• y = 4

• x = 4

• x + y = 4

The number of hours you spend weeding your garden and the type of roses that grow there

• positive correlation

• negative correlation

• no correlation

Which of the following equations intersects the origin?

• y = 5x + 1

• y = 5x

• y = 5x - 1

• $y\ =\ \frac{1}{5}x\ +\ 5$

 $y\ -\ 2\ =\ -\left(x\ +\ 9\right)$  

What is the slope of the line?

• m = 0

• m = -1

• m = -2

• m = 9

If a correlation coefficient is -0.1, the correlation is

• negative, but not very strong

• positive, but not very strong

• negative and very strong

• positive and very strong