Step-by-step explanation:
f(–7) if f(x) = 3x + 6
3(-7) +6
-21+6
x= - 15
You want y? One way to get y alone would be to mult. all 3 terms by (7/5):
(7/5)(5/7)y = (7/5)*3 - (7/5)(-1/5). This simplifies to:
y = 21/5 * 7/25, or y = 147 / 125.
You could check this using decimal fractions:
y = 4.20 * 0.28 = 1.176 = 147 / 125.
Answer:
9.06
Step-by-step explanation:
Rewrite as:
4y=x^2-12x+68
divide by four:
y= x^2/4-3x+17
your answer would be
(6,8)