Consider the function f(x) = x2 + 3x − 7. Find the value of f(x) when x = 3 and select the correct answer below. 5 8 11 18

2 answers:

5 0

If f(x) = x² + 3x − 7
then if your finding when x= 3 then simply subtitute x for three in the equation and then solve it

∴ f(3) = (3)² + 3(3) - 7
= 9 + 9 - 7
= 11

BARSIC [14]2 years ago

4 0

8 because 3•2+3•3-7=8

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In the graph above, the coordinates of the vertices of QPR are Q(3, 0), P(5, 6), and R(7, 0). If AQPR is reflected across

ozzi

Answer:

D. (7, 0)

Step-by-step explanation:

The rule for a reflection over the y-axis is (x, y) → (x, -y)

This means that the x-values stay the same while the y-values change.

Q(x, y) → (x, -y)

Q(3, 0) → (3, 0)

Q'(3, 0)

P(x, y) → (x, -y)

P(5, 6) → (5, -6)

P'(5, -6)

R(x, y) → (x, -y)

R(7, 0) → (7, 0)

R'(7, 0)

Therefore, the correct answer is D.

Hope this helps!

7 0

2 years ago

X= ? The trainable a below are similar

ratelena [41]

$\frac{x + 7}{3x + 3} = \frac{19}{38} \\ \Leftrightarrow \frac{x + 7}{3x + 3} = \frac{1}{2} \\ \Leftrightarrow 2x + 14 = 3x + 3 \\ \Leftrightarrow x = 11$

6 0

2 years ago

What is 2xy-3yz+5+2yz-xy

melomori [17]

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