(05.02 MC)
The figure shows a line graph and two shaded triangles that are similar.

which statement about the slope of the line is true?

Option C:

It is   throughout the line.

Solution:

Point on the larger shaded triangle are (0, 0) and (–6, –2).  

Point on the smaller shaded triangle are (–6, –2) and (–9, –3).

Slope of the line:

Slope of the larger triangle:

Here,  

Slope of the smaller triangle:

Here,  

Both slopes are equal.

It is   throughout the line.

Hence option B is the correct answer.

(x) - (y) = (1 + 4i)

3boys + 4 girls = 7 students

3 boys to students   true   yes

4 girls to 3 boy   true     yes

3 boys to 7 girls   false   no

4 girls to 7 students   true   yes