Which ratio is equivalent to
15 : 42

a) 5 : 12

b) 10 : 28

c) 36 : 48

d) 5 : 21

which ratio is equivalent to

15 : 42 = 0.35

a) 5 : 12 = 0.41

b) 10 : 28 = 0.35

c) 36 : 48 = 0.75

d) 5 : 21 = 0.23.

here, 15:42 and 10:28 have same value thus, they are equal

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct