Simplify -|-5 + 2|. A.-7 B.-3 C.3 D.7
1 answer:
You might be interested in
To find the gradient of the tangent, we must first differentiate the function.
The gradient at x = 0 is given by evaluating f'(0).
The derivative of the function at this point is negative, which tells us <em>the function is decreasing at that point</em>.
The tangent to the line is a straight line, so we will have a linear equation of the form y = mx + c. We know the gradient, m, is equal to -1, so
Now we need to substitute a point on the tangent into this equation to find c. We know a point when x = 0 lies on here. To find the y-coordinate of this point we need to evaluate f(0).
So the point (0, -1) lies on the tangent. Substituting into the tangent equation:
Answer:
Step-by-step explanation:
Hello,
let's solve
There are two solutions
And
So we can write
Hope this helps.
Do not hesitate if you need further explanation.
Thank you