Capulet's attitude in this scene is reminiscent of his demeanor at his masque in Act 1. Describe, by referring to the text, how you know this is true.
I'm not sure to which scene you're referring, but since you mention Act 1, scene 5 as well, I'll assume that you're comparing it to Act 3, scene 5 (Capulet railing against Juliet's refusal to marry Paris). In Act 1, scene 5, Capulet is at first delighting in his party. He encourages everyone to dance, and teases the ladies with gossip and rumors. But he soon changes his tone, when Tybalt threatens to attack Romeo. Suddenly, he is the man of the house, not willing to let a young, arrogant buck sully his reputation. When Tybalt says Romeo shall not be endured, Capulet responds:
He shall be endur'd.(80)
What, goodman boy? I say he shall. Go to!
Am I the master here, or you? Go to!
You'll not endure him? God shall mend my soul!
You'll make a mutiny among my guests!
You will set cock-a-hoop! you'll be the man!
He eventually forces Tybalt to leave, avoiding what he thinks will be an embarrassing scene. Similarly, in Act 3, scene 5, Capulet offers a kind word when he thinks Juliet will marry Paris, but quickly turns on her when she refuses. He offers sympathy for her tears, thinking they're for Tybalt, but immediately berates her when she doesn't agree to his arranged marriage:
How, how, how, how, choplogic? What is this?
‘Proud’—and ‘I thank you’—and ‘I thank you not’—
And yet ‘not proud’? Mistress minion you,
Thank me no thankings, nor proud me no prouds,(155)
But fettle your fine joints 'gainst Thursday next
To go with Paris to Saint Peter's Church,
Or I will drag thee on a hurdle thither.
Out, you green-sickness carrion! Out, you baggage!
In both instances, Capulet asserts his dominance in the family, threatening physical violence to those who dare defy him.