PART 1):
f(x) = 3x – 5 if x < -1
Start with a filled in circle on (-1, -8). Use the slope to go up 3 and right 1 to make another point and drawn the line only going down.
Answer: WRONG.
Because correct inequality is x≤-1 not x<-1. Hence we will put a close circle not an open circle. at (-1,-8).
Also since slope is positive so graph will go upward not downward.
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PART 2):
f(x) = -2x + 3 if -1 < x < 4
Put an open circle on (-1,5) and open circle on (4, -5). Connect those points.
Answer: Correct
Because correct inequality is < or > so both end points will be open circles.
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PART 3):
f(x) = 2 if x > 4
Put an open in circle on (4,2) then draw a horizontal line to the right.
Answer: WRONG.
Because correct inequality is x≥4 not x>4. Hence we will put a close circle not an open circle. at (4,2).
Answer:
C
Step-by-step explanation:
(2,-5) move up three steps is (2, -2). if you draw it on a paper(and draw lines to connect them), you can see that they form a right triangle. apply a²+b²=c² and you should get 3²+2²=(√13)²
Do 4x9+5 because you multiply 4 and c and then add on d.
Answer:
c.
Step-by-step explanation:
the most that can be factored out is -1.5,
-1.5 * w = -1.5w
-1.5 * -5 = 7.5
-1.5w + 7.5, so it's
-1.5(w-5)
