The answer is B
The formula of the function is
f(X) = - (X+1)^2
Answer: Nonlinear function
Step-by-step explanation:
Answer:
9x+2y=-10
Explanation:
First, we would need to organize the information given into slope-intercept form.
Slope-intercept form: y=mx+b
Here’s what the variables mean:
Y=the y coordinate
M=the slope
X=the x coordinate
B=the y-intercept (the point on the line that intercepts the y-axis)
When a linear equation in slope-intercept form is complete, the x and y variables are left just as they are. Knowing this, we just have to plug in the values given for the coordinate and solve for b, the y-intercept.
(-2,4),
y=mx+b
4=m(-2)+b
4=-2(-9/2)+b
4=9+b
Subtract 9 on both sides
4-9=9+b-9
-5=b
Awesome! Now, we know that the equation in slope-intercept form is:
y=-9/2x-5
To organize it into standard form, we need to move some things around.
Standard form: Ax+By=C
(A, B and C don’t have any kind of direct interpretation on a graph.)
y=-9/2x-5
Move the x variable to the other side
9/2x+y=-9/2x-5+9/2
9/2x+y=-5
It may look like we’ve finished here, but A, B and C need to be integers, meaning we cannot have any fractional values in these places.
9/2x+y=-5
Multiply both sides by 2 since it is the denominator
9x+2y=-10
I hope this helps! Please comment if you have any questions.
Answer:
(a) 27°
(b) 17.9m
Step-by-step explanation:
According to the attachment
⠀
let AB be the ladder
BC be the distance between the ladder and wall
⠀
(a) We have to find ∠A by trigonometry formula
Here angle A is facing BC so it is perpendicular
and AB is the longest side so it is hypotenuse
(b)
AC is the distance from the upper end of the ladder to ground
we will find it by Pythagoras theorem