9514 1404 393
Answer:
5x +y = 16
Step-by-step explanation:
Given a point and slope, it often works well to start with the point-slope form of the equation for a line:
y -k = m(x -h) . . . . . . . . line with slope m through point (h, k)
Your point and slope make this ...
y -6 = -5(x -2)
y -6 = -5x +10 . . . . . . eliminate parentheses
5x +y = 16 . . . . . . . . . add 5x+6 to both sides; your standard form equation
(5x+6)(2x+5)-(2x+4)(x+8) simplified is 8x^2+17x-2
C
<u>Anna:</u>
1st month = 18 + = 18 inches
2nd month = 18 + = 19
3rd month = 19 + = 20
4th month = 20 + = 21
5th month = 21 + = 21
<u>Grace:</u>
Because Anna is inches shorter than Grace, we can start the count from the third month:
1st month = 20
2nd month = 21
3rd month = 21
4th month = 21 + = 22
5th month = 22 + = 23
A=-20 B=20