Brenda’s scores on the first three of four 100-point science tests were 95, 92, and 89. what score does she need on her fourth science test to ensure an average score of at least 93?

12/11c

or

12

c

11

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.