Find the equation of the line through (-2,-4) and (5,-6).

y = - x -

Step-by-step explanation:

Find the slope with rise over run (y2 - y1) / (x2 - x1)

Plug in the points:

(-6 + 4) / (5 + 2)

-2/7

Then, plug in the slope and a point into y = mx + b to find b:

y = mx + b

-4 = -2/7(-2) + b

-4 = 4/7 + b

-4 4/7 = b

Then, plug in the slope and y intercept into y = mx + b

y = - x - will be the equation

yes. we do proportions in probabilities.

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!