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Svetach [21]
3 years ago
13

Which is the minimum value of the function y=x^2+8x+7

Mathematics
2 answers:
anygoal [31]3 years ago
8 0
The minimum value of the function is (-4, -9).
Aneli [31]3 years ago
7 0
You can do this by completing the square.
Y=x^2 + 8x + 7
= (x+4)^2 -16+7
= (x+4)^2 - 9

Minimum value = -9
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Y=3x+2 is the equation of a straight line graph. Where does it cross the y-axis?
tamaranim1 [39]
The line crosses the y-axis at point (0,2). You know this because the slope intercept form is y=mx+b. y is any point on the y-axis. m is the slope of the line. x is and point on the x-axis. Finally, b is the y-intercept or where the line crosses the y-axis. As a result, your equation has a 2 for b. So, your answer would be: the line crosses the y-axis at point (0,2). 2 being where the line crosses the y-axis.
8 0
3 years ago
13. Whats the domain and range? <br> 14. What’s the domain and range?
jonny [76]

Answer:

See below

Step-by-step explanation:

13) Domain: x -> {-3,-2,-1,0,1,2}, Range: f(x) -> {5}

14) Notice how x can't be -4 as that will make the denominator 0. Therefore, your domain is (-∞,-4)U(-4,∞) and your range is [0,∞) since 0 is the lowest possible real y-value that satisfies the equation (recall that if y<0, you are unable to find the real square root of a real number)

6 0
3 years ago
16. For quadrilateral ABCD, determine the most precise name for it. A(-2,3), B (9,3), C(5,6) and D(2,6). Show your work and expl
Anna [14]

AB (y=3) and CD (y=6) are parallel, but different lengths. The figure is a trapezoid. A diagram shows it to be an isosceles trapezoid.

8 0
3 years ago
Plzzzzzzzzzzz helppppppp
Svetach [21]

Answer:

1st answer

Step-by-step explanation:

4 0
3 years ago
Please help! <br><br> thank you!
Goshia [24]

Answer:

y intercept: (0,3)

slope: -2/3

6 0
3 years ago
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