Answer:
A
Step-by-step explanation:
f(x) = 7x² - 15x + 2
A) f(1) = 7*1² - 15*1 +2 = - 6
f(1.5) = 7*(1.5)² -15*1.5 + 2 = - 4.75
B) f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28
C) f(1) = 7*1² - 15*1 +2 = - 6
f(1) = 7*2² - 15*2 +2 = 0
D) not for all real numbers because we already have
f(2.2) = 7*(2.2)²-15*(2.2)+2 = 2.28 that is positive.
The area of a circle is pi times the radius squared. the radius of this circle is 16.8cm, which is 282cm when squared. multiplied by pi it becomes 887cm.
The factored form would be (x+3)(x+4) since 4*3 = 12 and 4+3 = 7
Answer:
Step-by-step explanation:
-16 + 12s - 22t + 6u
Answer:
y=3x+1
Step-by-step explanation:
A parallel line has the same slope as the other line.
y=mx+b, m is the slope
Thus in y=3x+1, m =3
y = 3x + b
plug in points (1, 4) to determine b
4 = 3(1) + b
4 = 3 + b
subtract 3 on both sides
4 - 3 = b
b = 1
y = 3x + 1
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