1. 2x - 2/ x + 7
2. 3/ x^2 - 5x - 6
3. -8(4-y)/ (y+2)(y-4)
4. r^2 - r - 6/ r^2 + r - 12
5. 5m + 25/ 10 * 12/ 6m + 30
6. 6r - 18/ 9r^2 + 6r - 24 * 12r - 16/ 4r - 12
7. x^2 - y^2/ y^2 + 3y - 4 divided by y^2 + 3y + 2/ y^2 + 4y + 3
for # 3&4 write the rational expression in lowest terms
for the last ones, find the product or quotient
2007-06-02 03:15:40 · 4 answers · asked by Princess 2 in Science & Mathematics ➔ Mathematics
The 'domain' of a function is the set of values the independent variable may assume without the function becoming 'undefined' (usually through division by 0).
In (1) x can't ever be 0 since then 2/x would be undefined.
In (3) y can't be equal to -2 or 4 for the same reason.
Now --you-- do the rest of them so you get the idea firmly in place ☺
Doug
2007-06-02 03:33:15 · answer #1 · answered by doug_donaghue 7 · 0⤊ 0⤋
STEP a million: component. As you will locate, the two the suitable and backside expression the two have a known component of 5. 5(x + 5) ----------- 5(x - 5) STEP 2: SIMPLIFY!!!!! x + 5 --------- x - 5
2016-11-25 00:41:19 · answer #2 · answered by alexine 3 · 0⤊ 0⤋
Exactly
Ana
2007-06-03 15:17:02 · answer #3 · answered by MathTutor 6 · 0⤊ 0⤋
if you want more answers dont put so many questions in one
2007-06-02 06:25:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋