Sagot:
# y = 2 (x + 7/4) ^ 2 + 169/8 #
Paliwanag:
Given -
# y = 2x ^ 2 + 7x-15 #
Hanapin ang kaitaasan
#x = (- b) / (2a) = (-7) / (2 xx 2) = - 7/4 #
# y = 2 (-7/4) ^ 2 + 7 (-7/4) -15 #
# y = 2 (49/16) -49 / 4-15 #
# y = 49 / 8-49 / 4-15 = 169/8 #
Parehong equation sa vertex form
# y = a (x-h) ^ 2 + k #
Saan -
# a # ay ang co-mahusay ng# x ^ 2 #
# h # ay#x # coordinate ng vertex
# k # ay ang# y # coordinate ng vertex
# y = 2 (x - (- 7/4)) ^ 2 + 169/8 #
# y = 2 (x + 7/4) ^ 2 + 169/8 #
Panoorin din ang video na ito