write the standard form point slope form and slope intercept form of a line that passes through (-1,7) and (8,-2)

See explanation

Step-by-step explanation:

Slope = -2 - 7 / 8 - (-1) = -9/9 = -1

Slope = -1

Point slope form: y - y₁ = m (x - x₁)

y₁ = 7

x₁ = -1

y - 7 = -1 ( x - [-1])

y - 7 = -1 ( x + 1)

y - 7 = -1x - 1

Add 7 to both sides

y = -1x - 1 + 7

y = -1x + 6  or   y = -x + 6

Standard Form: Ax + By = C

I didn't explain this part very well last time. You can use the point-slope form AND the slope-intercept form to find this.

Point slope form- y = -x + 6

Standard form:

y = -x + 6

Add x to both sides

x + y = 6        or   -x - y = -6

Slope intercept form: y = mx + b

m = -1

y-intercept = 6

y = -1x + 6   or   y = -x + 6

Hope this helped!

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

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