2. which of these is the point-slope form of the line through points (3,-1) and (4,9)?
1. y - 4 = 10(x -9)
2. y + 1 = 10(x - 3)
3. y - 3 = 10(x + 1)
4. y + 1 = 10(* - 4)
3. which of these is the point-slope form of the line through point (4,-2), with a slope of 7?
1. y - 4 = 7(x + 2)
2. y + 4 = 7(x - 2)
3. y + 2 = 7(x-4)
4. y - 2 = 7(x + 4)

vbbv

step-by-step explanation:

sine

step-by-step explanation:

addition

step-by-step explanation:

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!