ayeitsj15
ayeitsj15 ayeitsj15
  • 15-05-2020
  • Mathematics
contestada

How many x-intercepts does the graph of y = 4x2 + 5x + 2 have?

Respuesta :

ghanami
ghanami ghanami
  • 16-05-2020

Answer:

Step-by-step explanation:

hello : y= 4x² + 5x + 2

the x-intercepts  when y=0  means : 4x² + 5x + 2=0

a=4   b= 5   c=2

∆ = b²- 4ac     ∆ = (5)²- 4(4)(2) =25-32 = -7

∆ < 0 no reals solutions no  x-intercepts  

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