Note: parentheses means that there's a hole at -3 and 5.
Draw a number line.
Plot -3 and 5 with a hole.
<------(-3)---------------------------(5)---->
Answer:
x= 13
Step-by-step explanation:
x + 8 = 21
x + 8-8 = 21-8
x = 13
Hello :
(f+g)(x) = f(x) +g(x) = (5x-2)+ (2x+1) = 7x -1
Answer:
y=2X+9
Step-by-step explanation:
y-7=2(x+1)
Distribute 2 through: y-7=2x+2
Add 7 over to the other side: y=2x+9
Answer:
-4
Step-by-step explanation:
We know it's a linear equation and the slope is a whole number. Using point slope form we will write the equation:
y - y1 = m (x - x1) in which y1 is -7, m is 3, and x1 is -1
y - (-7) = 3(x-(-1))
y+7 = 3(x+1)
y+7 = 3x +3
Change to slope-intercept form:
y = 3x + 3 - 7
y = 3x = -4
the y intercept is -4
