Given ƒ(x) = − 1 2 x + 7, find x when ƒ(x) = 10. a) −6 b) −3 c) 2 d) 7

x = -1/4

Step-by-step explanation:

Since f(x) is given as 10 , just substitute into the equation given , that is

10 = -12x + 7

Collecting the like terms , we have

12x = 7 - 10

12x = -3

x = -3/12

x = -1/4

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3