For questions 1-8, read and solve each problem; choose the best answer from the choices provided
for each item.
1. (MGSE9-12.F.BF.1) This table shows the number of people at a festival at certain times during
the day. Which function best represents the table below?
Hour (PM) 1 2 4 7 8
Number of People 12 19 33 54 61
A. f(x) = 7x + 12
B. f(x) = 7x + 5
C. f(x) = 5x + 7
D. f(x) = 5x + 12

For questions 18 read and solve each problem choose the best answer from the choices provided for each item 1 MGSE912FBF1 This table shows the number of people class=

Respuesta :

Answer:

[tex] f(x) = 7x + 5 [/tex].

Step-by-step explanation:

The equation that represents the function can be written in the slope-intercept form, [tex] f(x) = mx + b [/tex].

To create an equation, we need to find the slope (m) and the y-intercept (b) of the function.

First, calculate the slope of the function using two points, (1, 12) and (2, 19).

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{19 - 12}{2 - 1} = \frac{7}{1} = 7 [/tex]

Next, find b by substituting x = 1, f(x) = 12, and m = 7 into [tex] f(x) = mx + b [/tex].

[tex] 12 = (7)(1) + b [/tex]

[tex] 12 = 7 + b [/tex]

Subtract 7 from each side

[tex] 12 - 7 = b [/tex]

[tex] 5 = b [/tex]

[tex] b = 5 [/tex]

Substitute m = 7 and b = 5 into [tex] f(x) = mx + b [/tex].

✅Thus, the equation that represents the function would be:

[tex] f(x) = 7x + 5 [/tex].

Q&A Education