Plz help me with this question ASAP! Thank you so much

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Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10