If Y varies directly with X, and Y = -5 and X = 7, what is X when Y = -85?
1 answer:
Answer:
X = 119
Step-by-step explanation:
Step 1: Given
Y = -5 X = 7
Y = -85 X = n
Step 2:
-85 ÷ -5 = 17
Step 3:
17 × 7 = 119
Answer:
Y = -5 X = 7
Y = -85 X = 119
n = 119
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Solve for x
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x=-89.8
Plug slope in the general equation : y = mx + b
y = -x + b
5 = -4 + b
b = 9
Plug y-intercept int the general equation:
y = -x + 9
Answer: y = -x + 9
