This stem-and-leaf plot represents test scores of students in a math class. if two test scores, 79 and 79, are added to the data, which statement will be true? a. the median will change; the mode will stay the same. b. the mode will change; the median will stay the same. c. the median and the mode will both change. d. the median and the mode will stay the same.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.